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Maya Rise and Fall

Maya Feature

The Maya: Glory and Ruin

Saga of a civilization in three parts: The rise, the monumental splendor, and the collapse.

By Guy Gugliotta
Photograph by Simon Norfolk with permission of Conaculta-INAH, Mexico

The doomed splendor of the Maya unfolded against the backdrop of the rain forests of southern Mexico and Central America. Here, Classic Maya civilization reached improbable heights. To chart a culture whose Preclassic roots reach back 3,000 years, we begin with new evidence suggesting that the arrival of a warlord from central Mexico ushered in an age of magnificence and masterpieces such as the death mask of Palenque's King Pakal. But empires rise only to fall. We conclude with the cascade of catastrophe—natural and man-made—that precipitated the Classic Maya collapse, leaving nature to reclaim the grandeur.

THE RISE
The Kingmaker
The stranger arrived as the dry season began to harden the jungle paths, allowing armies to pass. Flanked by his warriors, he marched into the Maya city of Waka, past temples and markets and across broad plazas. Its citizens must have gaped, impressed not just by the show of force but also by the men's extravagant feathered headdresses, javelins, and mirrored shields—the regalia of a distant imperial city.

Ancient inscriptions give the date as January 8, 378, and the stranger's name as Fire Is Born. He arrived in Waka, in present-day Guatemala, as an envoy from a great power in the highlands of Mexico. In the coming decades, his name would appear on monuments all across the territory of the Maya, the jungle civilization of Mesoamerica. And in his wake, the Maya reached an apogee that lasted five centuries.

http://ngm.nationalgeographic.com/



What's Happening to Them

Soy plant Oil palm plantation Soil erosion Afromosia stump Burning forest

Images left to right: © Bob Gibbons / ardea.com; new oil palm plantation © Greenpeace / Natalie Behring; soil erosion after deforestation © Sue Cunningham; tree stump © Rainforest Foundation UK; burning forest © Rainforest Foundation UK

How Much Are We Losing?*

In the past 50 years, a third of the world's rainforests have been felled and burned, and deforestation continues. The loss of natural tropical forests - both wet and dry forest - amounts to 15 million hectares per year [1]. Of this total, almost 6 million hectares are humid tropical forests, or rainforests [2]. It's the equivalent of about 8.5 million football pitches a year, or 23,483 pitches a day.

Although this deforestation averages a loss of less than 1% of the forests per year, it is believed that after the loss of 30-40% of a rainforest, the remaining forest will become so destabilised that it may collapse [3]

Humid Tropical Forests and Deforestation

Brazil and Borneo
Mongabay.com notes that between May 2000 and August 2006, Brazil lost nearly 150,000 square kilometres of forest - an area larger than Greece. If those trends were to continue, in the next twenty years 55% of Amazon forests will be ‘cleared, logged, damaged by drought or burned'. [4]

Maps of deforestation in Borneo from 1950 to present, and predictions into the future highlight the speed of forest loss. Vast expanses of Borneo rainforest have been cleared since the second world war. Forests are logged, burned and cleared, usually to be replaced by farms, palm oil plantations or pulpwood plantations [5].

Map showing deforestation rates in Borneo from 1950-2020

Map showing deforestation rates in Borneo from 1950-2020

Disappearing in our lifetime
Given that by 2050 there may be very little rainforest left in large areas in the tropics, it seems that it's not just future generations that will suffer the appalling effects that losing the rainforests will have on the planet, but current generations too.

*All global figures concerning tropical forest cover and deforestation, including the ones included on this website, have to be approached with caution as the underlying data are subject to considerable uncertainty.

Sources
1: FAO Forest Resources Assessment 2005
2: Hansen et al, PNAS (2008)
3: Global Canopy Programme
4: http://news.mongabay.com/2007/0813-amazon.html (accessed May 2008)

Why Rainforests Matter

Trees in the mist. Image courtesy of Katherine Secoy, Global Canopy Programme

Trees in the mist. Image courtesy of Katherine Secoy, Global Canopy Programme

Tropical rainforests provide important ecosystem services to local communities and to the world. They store water, regulate rainfall and contain over half the planet's biodiversity. Most importantly, tropical forests play a crucial role in climate change.

Emissions from tropical deforestation contribute 17% of annual greenhouse gas emissions [1]. Equally important, conserved rainforests continue to sequester almost the same amount of atmospheric carbon each year. As a result, tackling the issue of tropical deforestation will be essential if the world is to achieve the goal of limiting global warming to below two degrees Celsius this century and avoiding catastrophic climate change.

Orangutan Mother & Baby © Jean Paul Ferrero/Ardea.com

Orangutan Mother & aby © Jean Paul Ferrero/Ardea.com

In addition, rainforests support the livelihoods of 1.6 billion of the world's poorest people by providing food, fibre, water and medicines, as well as regulating local environments. Those supported include indigenous peoples with unique and precious cultures.

The rainforests are a complex environment essential to the stability of our planets climate and its ability to support life in its current form. But they are being lost at an alarming rate. Urgent action is required to halt this trend and preserve these forests for the benefit of local communities and for the good of the world.

Sources
1 IPCC, AR4 Synthesis Report (2007)

What is a Rainforest

Tropical rainforests have evolved over tens of millions of years into highly complex ecosystems, which contain over half of the world's species of plants and animals.

Rainforest, Costa Rica. Image courtesy of Chris Perrett, naturesart

Rainforest, Costa Rica. Image courtesy of Chris Perrett, naturesart



Millions of years in the making

Many trees in the rainforests are hundreds of years old. Radiocarbon dating methods, used in the Amazon, indicate that half of all trees greater than 10 centimetres in diameter are more than 300 years old and that some trees are over 1,000 years old [1].

Daintree Rainforest in Queensland, Australia is believed to be the oldest living rainforest at a grand old age of around 135 million years [2]. To put this into context, the first hominids (human-like primates) did not appear until around 5-8 million years [3]. This time has allowed rainforests to evolve into highly complex ecosystems with unparalleled and globally important levels of biodiversity.

Where are they?

By definition, tropical rainforests lie between the Tropic of Capricorn and the Tropic of Cancer, 22.5° North and 22.5° South of the equator. Almost half of the remaining tropical rainforest is found in tropical America, a bit more than a third in Asia and Oceania, and fifteen percent in Africa. In total, over 80 countries are considered rainforest owning nations. However, three countries - Brazil, Indonesia and the Democratic Republic of Congo - contain almost half of the world's tropical rainforests.

Tropical Rainforests of the World

The structure of a rainforest

Home to an incredibly diverse range of species and plant life, the structure of rainforests is complex and highly evolved, making them the most biologically rich ecosystems to be found on the planet. Rainforest trees can reach heights of over 60m (200 ft) high. From the tips of their branches down to the base of their trunks, around four to five distinct forest strata can be found, each providing a specific habitat for plants and animals. Click here to read more.

Climate

As the name suggests, rainforests experience high levels of rainfall and are often covered by clouds and mist. This humid climate is partly created by the trees themselves. The combined activity of animal and plant life releases huge quantities of volatile organic compounds, which create the fine condensation nuclei around which water droplets form. Moisture is held in these humid, cool ecosystems and evaporates slowly to make clouds, which helps maintain regular rainfall.

Sources:
1 Bourgeron, Patrick S. (1983) "Spatial Aspects of Vegetation Structure", in Frank B. Golley: Tropical Rain Forest Ecosystems. Structure and Function 14A, Ecosystems of the World, Elsevier Scientific, 29-47
2 http://www.daintreerainforest.com/ (accessed May 2008)
3 http://anthro.palomar.edu/earlyprimates/first primates.htm; http://www.mc.maricopa.edu/dept/d10/asb/anthro2003/origins/bipediality.html (accessed May 2008)
4 http://news.bbc.co.uk/1/hi/sci/tech/4947350.stm (accessed May 2008)
5 http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/rainforest/rainfrst.html (accessed May 2008)
6 BBC Anatomy of a Rainforest (http://news.bbc.co.uk/1/hi/sci/tech/7127687.stm, accessed May 2008)


http://www.rainforestsos.org/




What is a Rainforest

Tropical rainforests have evolved over tens of millions of years into highly complex ecosystems, which contain over half of the world's species of plants and animals.

Rainforest, Costa Rica. Image courtesy of Chris Perrett, naturesart

Rainforest, Costa Rica. Image courtesy of Chris Perrett, naturesart



Millions of years in the making

Many trees in the rainforests are hundreds of years old. Radiocarbon dating methods, used in the Amazon, indicate that half of all trees greater than 10 centimetres in diameter are more than 300 years old and that some trees are over 1,000 years old [1].

Daintree Rainforest in Queensland, Australia is believed to be the oldest living rainforest at a grand old age of around 135 million years [2]. To put this into context, the first hominids (human-like primates) did not appear until around 5-8 million years [3]. This time has allowed rainforests to evolve into highly complex ecosystems with unparalleled and globally important levels of biodiversity.

Where are they?

By definition, tropical rainforests lie between the Tropic of Capricorn and the Tropic of Cancer, 22.5° North and 22.5° South of the equator. Almost half of the remaining tropical rainforest is found in tropical America, a bit more than a third in Asia and Oceania, and fifteen percent in Africa. In total, over 80 countries are considered rainforest owning nations. However, three countries - Brazil, Indonesia and the Democratic Republic of Congo - contain almost half of the world's tropical rainforests.

Tropical Rainforests of the World

The structure of a rainforest

Home to an incredibly diverse range of species and plant life, the structure of rainforests is complex and highly evolved, making them the most biologically rich ecosystems to be found on the planet. Rainforest trees can reach heights of over 60m (200 ft) high. From the tips of their branches down to the base of their trunks, around four to five distinct forest strata can be found, each providing a specific habitat for plants and animals. Click here to read more.

Climate

As the name suggests, rainforests experience high levels of rainfall and are often covered by clouds and mist. This humid climate is partly created by the trees themselves. The combined activity of animal and plant life releases huge quantities of volatile organic compounds, which create the fine condensation nuclei around which water droplets form. Moisture is held in these humid, cool ecosystems and evaporates slowly to make clouds, which helps maintain regular rainfall.

Sources:
1 Bourgeron, Patrick S. (1983) "Spatial Aspects of Vegetation Structure", in Frank B. Golley: Tropical Rain Forest Ecosystems. Structure and Function 14A, Ecosystems of the World, Elsevier Scientific, 29-47
2 http://www.daintreerainforest.com/ (accessed May 2008)
3 http://anthro.palomar.edu/earlyprimates/first primates.htm; http://www.mc.maricopa.edu/dept/d10/asb/anthro2003/origins/bipediality.html (accessed May 2008)
4 http://news.bbc.co.uk/1/hi/sci/tech/4947350.stm (accessed May 2008)
5 http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/rainforest/rainfrst.html (accessed May 2008)
6 BBC Anatomy of a Rainforest (http://news.bbc.co.uk/1/hi/sci/tech/7127687.stm, accessed May 2008)


http://www.rainforestsos.org/




Forest outcomes from Copenhagen

The expectation that the Copenhagen climate change summit might agree a new international treaty on climate change was not fulfilled when the meeting finished with a weak voluntary agreement. This agreement, known as the Copenhagen Accord, does however contain references to what might be done to combat deforestation and does commit nations to providing finance for this purpose.

The main reference to forest related action says:

‘We recognize the crucial role of reducing emission from deforestation and forest degradation and the need to enhance removals of greenhouse gas emission by forests and agree on the need to provide positive incentives to such actions through the immediate establishment of a mechanism including REDD-plus (Reducing Emissions from Deforestation and Degradation), to enable the mobilization of financial resources from developed countries.’

This is a substantial shift in policy towards protecting forests - most governments assumed that very little finance would be made available for forests until the market mechanism came into operation post 2012. However The International Working Group (a group set up following the meeting convened by The Prince of Wales in April 2009) issued a report in September 2009 which described a consensus on the need to provide substantial and immediate interim finance to rainforest nations. Subsequently, six nations (US, UK, Norway, France, Japan, Australia) pledged $3.5billion to support immediate REDD-plus activity between 2010-2012. The arrangements for this funding are being discussed during the first half of 2010, with the hope that an agreement can be reached in advance of the June UNFCCC meetings in Bonn.

The Prince's Rainforests Project continues to assist in the consensus building process that will lead to this interim finance for the rainforest nations being available this year. In addition we are working with the agricultural sector in rainforest nations in order to encourage appropriate finance to farmers so that real behavioural change can occur.

You can see the full text (three pages) of the Copenhagen Accord at http://unfccc.int/files/meetings/cop_15/application/pdf/cop15_cph_auv.pdf

Source : http://www.rainforestsos.org

Rainforests

Heliconia cloud forest Heliconia Toco Toucan Tall tree
Images courtesy of Chris Perrett, naturesart

Rainforests wrap around the equator of the earth like a green belt. After millions of years of evolution, they are the most biologically rich ecosystems on our planet. Tropical rainforests contain a hugely rich diversity of species of plants and animals. They are also home to many different indigenous people, who have unique and treasured cultures.

Globe with Tropical Rainforest distribution marked in green around the center.

Valuable resources for everyone

Rainforests are precious resources for all of us – not just for the nations in which they are found. They provide vital ecosystem benefits for the whole world. They store water, regulate rainfall and provide a home to over half the planet’s biodiversity. But more importantly, they also play a crucial role in climate change. And that’s why we’re worried.

When it comes to climate change, the destruction of rainforests has a double whammy effect for everyone. Rainforests absorb almost a fifth of the world’s man-made CO2 emissions every year. But tropical deforestation releases an extra 17% of annual greenhouse gas emissions. So if the rainforests are destroyed, it’s bad news on both counts.

Read more about what makes a rainforest
Read more about why rainforests are important
Download rainforest and climate change factsheets for teachers, students and pupils.

Rapid deforestation

Rainforests around the world are being destroyed at an alarming rate. This is increasingly due to destructive logging operations and conversion of the land for farming use.

Cutting down and burning tropical forests to clear the land in this way enables rainforest nations to provide globally traded commodities, such as timber, palm oil, beef and soy.

The world’s population is likely to increase from 6 billion to 9 billion over the next 40 years. This population growth, combined with rising incomes, will lead to a continual increasing demand for food, animal feed and fuel. And this, in turn, will lead to more destruction of rainforests – with devastating effects for everyone.

Read more about what is happening to rainforests

The need for urgent action

The Prince’s Rainforests Project believes that emergency funding is needed to help protect rainforests and to encourage rainforest nations to continue to develop without the need for deforestation.

If we don’t take action, we could lose another 100 million hectares of tropical forests over the next 10 years – that’s an area the size of Egypt.

Saving the rainforests will give the world a better chance to achieve its goals of stabilising climate change, while also preserving important ecosystem benefits, not to mention the fact that over one billion of the poorest people on Earth depend on the rainforests for their livelihoods.

The need for action is urgent. Recent research shows that it will be impossible to avoid catastrophic climate change without it [1].

Sources

1 McKinsey & Company, ‘Global GHG Abatement Cost Curve v2' (2009); ClimateWorks Foundation / McKinsey & Company ‘Project Catalyst'

http://www.rainforestsos.org



WHAT CAN WE LEARN FROM TROPICAL RAINFORESTS?



Photo by Ard Hesslink
“In myriad ways humanity is linked to the millions of other species on this planet. What concerns them equally concerns us.” –From Sustaining Life
Fifty percent of all known plants and animals occur in tropical rainforests, which cover just six percent of the earth’s surface. There is much we can learn from how each of these millions of species has adapted to the challenges of living in a tropical habitat. By emulating their strategies in our designs and following life’s principles, we can learn to live more sustainably.

For more information about the importance of rainforests and what you can do to help protect this rich source of inspiration, visit the website for the Prince’s Rainforests Project.


Photo by teejaybee

Approximately 80% of all insect species live in tropical rainforests.

Photo by flickrfavorites
"In a purely technical sense, each species of higher organism—beetle, moss, and so forth, is richer in information than a Caravaggio painting, Mozart symphony, or any other great work of art." –Edward O. Wilson

Here we present 24 strategies used by rainforest species that can inspire biomimetic designs.


Photo by Bob Snyder
The rainforest is home to 155,000 out of 225,000 plant species known in the world.
Source: http://www.asknature.org


ENVIRONMENT-ZIMBABWE: Future Generations Will 'Inherit Only the Wind'

Ignatius Banda

BULAWAYO, Apr 3 (IPS) - The plumes of smoke rising above the dense working class suburbs of Bulawayo are a sign of the environmental impact of Zimbabwe's electricity crisis.



In January, the Hwange Thermal Power Station broke down. Zimbabwe Electricity Supply Authority (ZESA) spokeperson Fullard Gwasira announced that the country's power supply had dropped to just 750 megawatts, barely a third of Zimbabwe's peak demand for 2,200 MW.

Faced with frequent power cuts, millions of people across the country have increasingly turned to wood as an alternative energy source, to cook and heat their homes during the winter.

Deforestation is not a new phenomenon in Zimbabwe. The country lost more than 20 percent of its forest cover between 1990 and 2005, an average loss of 312,900 hectares, according to statistics compiled by environment website Mongabay from a variety of sources including the the United Nation's Environment Programme and the Food and Agriculture Organisation.

Still more alarming, the rate of forest loss accelerated by 16 percent between 2000 and 2005 as political and economic crisis gripped the country.

The controversial land reform exercise that began in 2000, which saw veterans of the 1970s war of liberation occupy many large farms owned by Zimbabwe's white minority, has contributed to reduced agricultural yields and environmental degradation.

Two or three times a week, James Chulu hires a donkey-drawn cart to tour the small farming plots in areas on the outskirts of Bulawayo to buy wood for sale in the city. Conservationists say the new occupiers of land in areas like Nyamandlovu and Plumtree are felling trees without replanting anything for the next generation.

"They have been selling us the firewood for sometime now," Chulu said. "But after ZESA began cutting electricity for hours (at a time) last year, the demand has gone up and we have virtually stripped the woodlands."

Thabilise Gumpo, of conservation group Environment Africa, is just one of many concerned observers.

"We will be left with no forests or trees and one has to imagine the deserts we are creating in the process all because of the electricity outages," she told IPS. "But it is difficult (to raise objections) when this is the only energy source the people have. The environment has been the worst casualty here."

So severely depleted is the supply of wood, that residents have begun to sacrifice precious fruit trees. Judith Mwale, a widow and grandmother whose face and posture betray 60 years of toil, can't afford the wood sold by vendors like Chulu, one U.S. dollar for a bundle of three small pieces.

"I had no choice but ask some young men in the neighbourhood to chop down the trees. How else would I prepare my meals and feed these children?" Mwale asked.

"What can we do?" Chulu says, shrugging his shoulders. He and Mwale both exemplify a common local attitude that the environment will take care of itself.

But environment activist Gumpo fears that future generations will "inherit the wind."

"It is a difficult gospel to preach," she says of conservation, at a time when a broke government is both failing to maintain its own generating facilities or to settle huge electricity bills for power imported from neighbouring South Africa, the Democratic Republic of Congo and Zambia.

Monitoring a Changing Climate

By Isaiah Esipisu

NAIROBI, Apr 13, 2010 (IPS) - The gathering environmental crisis presented by global warming makes effective weather information and prediction a matter of urgency. As Africa's farmers come to grips with adapting to climate change, it may be that the best way to equip them is to involve them directly in collecting the data. 


earth warming


Evidence presented to the first conference of ministers responsible for meteorology in Africa, taking place in Nairobi, Kenya from Apr 12-16, shows that countries which have involved local communities in monitoring of climatic conditions have markedly better outcomes in terms of improved agricultural yields and public health.

African governments may need to localise meteorological services from the monitoring level, through data analysis, to dissemination, in order for weather and climate information to make sense to the people who need it most in agriculture and related sectors.

The need for the information is pressing.

"For years, African communities have used traditional methods of predicting climatic conditions. But in the wake of climate change, it is no longer easy for them to use natural indicators to determine the same," said Issa Djire, the director of the Upper Niger River Valley Programme (OHVN in French, Office de la Haute Vallée du Niger) based in Bamako, Mali.

The past 40 years have seen both increased flooding and desertification in Mali. The country's national action programme for adaptation expects average temperatures to rise between 1 and 3.5 degrees by 2060. With nearly three quarters of the population living in rural areas, sustainable land management is a primary challenge. According to the UNDP, effects of global warming have already contributed to mass migration to urban centres.

Earlier in April, the Red Cross said it was nearly tripling food aid to Niger and Mali, citing government estimates that more than 250,000 people in northern Mali are facing food shortages due to drought. The situation in neighbouring Niger is worse, with half of the population of 16 million affected by food insecurity.

Twelve years ago, Mali adopted a new system in which rain monitoring is carried out entirely at the local level. Thousands of rain gauges are located in villages, and community members are involved in collection and analysis of rain patterns.

The information is then passed on at community meetings and through community radio stations broadcasting in local languages.

"Packaging of the information is extremely important. The farmers will use it accurately only if they understand it fully," Djire told IPS at the conference.

"Local monitoring of rainfall patterns has boosted preparedness among farmers, and through agricultural extension officers, they have been able to determine exactly the type of seed they should plant, when to plant them, and the insecticides they need to buy in advance," said Djire.

Improving resilience

Meteorologists at the conference want other African governments to emulate Mali’s strategy as a method of improving resilience to the impact of climate change.

"Collecting meteorological data is extremely expensive. Yet it is pointless if the data does not benefit the end user, who in most cases is a peasant farmer in a remote village," said Alhassane Adama Diallo, the director general of the African Centre of Meteorology Applications for Development (ACMAD).

Diallo said that Africa has only an eighth the required number of meteorological stations as per the standards of the World Meteorology Organisation. He said governments must set aside funds to be used for meteorological services as part of plan for disaster management.

Dr Joseph Mukabana, director of Kenya’s Meteorological Department, says his country has adopted a new focus on meteorology at the provincial level. "We realised that we were not getting very accurate information when we were monitoring at a national level," he said.

Kenya needs roughly 70 meteorological stations to deliver accurate predictions, but it currently has only 37.

Yet Kenya is considered one of the continent's leaders in gathering weather information.

To boost weather and climate monitoring systems in Africa, the African Development Bank (ADB) and the World Bank have agreed to provide 155 million dollars through ACMAD.

"We have already signed for the first $30 million, which is expected to be on the ground in different countries by next month," said Diallo.

The money will be used to train and re-train experts across the continent in better processing and analysis of climate data, and to strengthen communication strategies to reach farmers in a format they can understand.

The importance of meteorological services is not limited to agriculture and food security. Climate is important for the monitoring and management of public health, for example where diseases such as malaria may spread to new areas as average temperatures and rainfall shift.

Transport - particularly the aviation industry - water resources management, energy and tourism are other sectors that can benefit from improved weather observation and reporting.

Source : http://www.ipsnews.net


Land use and biodiversity in northern Thailand


Rapid deforestation has occurred in northern Thailand over the last few decades and it is expected to continue. The government has implemented conservation policies aimed at maintaining forest cover of 50% or more and promoting agribusiness, forestry, and tourism development in the region. The goal of this paper was to analyse the likely effects of various directions of development on the region.

Specific objectives were:

  1. to forecast land use change and land use patterns across the region based on three scenarios
  2. to analyze the consequences for biodiversity
  3. to identify areas most susceptible to future deforestation and high biodiversity loss.

Dyna-CLUE and GLOBIO3

The study combined a dynamic land use change model (Dyna-CLUE) with a model for biodiversity assessment (GLOBIO3). The Dyna-CLUE model was used to determine the spatial patterns of land use change for the three scenarios. The methodology developed for the Global Biodiversity Assessment Model framework (GLOBIO3) was used to estimate biodiversity intactness expressed as the remaining relative mean species abundance (MSA) of the original species relative to their abundance in the primary vegetation.

Results

The results revealed that forest cover in 2050 would mainly persist in the west and upper north of the region, which is rugged and not easily accessible. In contrast, the highest deforestation was expected to occur in the lower north. MSA values decreased from 0.52 in 2002 to 0.45, 0.46, and 0.48, respectively, for the three scenarios in 2050. In addition, the estimated area with a high threat to biodiversity (an MSA decrease of 0.5) derived from the simulated land use maps in 2050 was approximately 2.8% of the region for the trend scenario. In contrast, the high-threat areas covered 1.6 and 0.3% of the region for the integrated management and conservation-oriented scenarios, respectively.

Measures

Based on the model outcomes, conservation measures were recommended to minimize the impacts of deforestation on biodiversity. The model results indicated that only establishing a fixed percentage of forest was not efficient in conserving biodiversity. Measures aimed at the conservation of locations with high biodiversity values, limited fragmentation, and careful consideration of road expansion in pristine forest areas may be more efficient to achieve biodiversity conservation.

Based on abstract of: Trusirat at al., (in press) Environmental Management

Bron: http://www.springerlink.com/content/l27lv0qtj1234068/

Source : http://www.globio.info/



The IUCN Red List web site made easy: a users’ guide is now available!

Learning from nature’s incredible designs

Learning from nature’s incredible designs

In Janine Benyus’s world, architects, car manufacturers, furniture makers and engineers don’t look to computers to solve design challenges - they look outside their windows.

The natural sciences writer, innovation consultant, and author proposes that the most inspiring ideas come from what we imitate in nature, not what we extract from it. This philosophy has earned her multiple accolades, including 2009 UNEP Champion of the Earth and Time International Hero of the Environment

Through her childhood abode in a woodsy town in New Jersey, to her current home in the mountainous state of Montana, Janine has cultivated a deep knowledge of the natural world:

"A sustainable world already exists, in the prairies, forests, tundras, and coral reefs of our planet. The search for solutions to problems like climate change should start here, emulating life-enhancing technologies that have been field tested for 3.8 billion years.”

Biomimicry – a discipline popularized by Benyus – studies nature's best ideas and imitates these designs and processes to solve human problems. The word comes from bios, meaning life, and mimesis, meaning to imitate.

The core idea is that nature, imaginative by necessity, has already solved many of the problems we are grappling with. Animals, plants, and microbes are the niftiest engineers. They have found what works, what is appropriate, and most significantly, what lasts here on Earth.

If this seems like a far-flung treehugger’s nirvana, consider the following examples of biomimicry at work:

Dolphins: Blue-Finned Weather Monitors

Some 225,000 people died in the Sumatran tsunami in 2004. The difficulty is detecting tsunamis early enough to warn people, because tsunami waves dozens of feet high when they reach the shore may only be a few dozen centimeters high as they travel through the deep ocean. In order to reliably detect them and warn people before they reach land, sensitive pressure sensors must be located underneath passing waves in waters as deep as 6000 meters. The sensor data must then be transmitted up to a buoy at the water’s surface, where it is relayed to a satellite for distribution to the early warning center. Transmitting data through miles of water has proven difficult, however: sound waves, while unique in being able to travel long distances through water, reverberate and can destructively interfere with one another as they travel, compromising the accuracy of information.

Unless, that is, you are a dolphin.

Dolphins are able to recognize the calls of specific individuals, or ‘signature whistles’, up to 25 kilometers away, demonstrating their ability to communicate and process sound information accurately despite the challenging medium of water. By employing several frequencies in each transmission, dolphins have found a way to cope with the sound scattering behavior of their high frequency, rapid transmissions, and still get their message reliably heard. Emulating dolphins’ unique frequency-modulating acoustics, engineers have developed a high-performance underwater modem for data transmission, which is currently employed in the tsunami early-warning system throughout the Indian Ocean.

“100% Effective Washing Detergent! Now Infused With…Lotus?”

Ask any school child or adult how leaves keep water from sticking to them, and they’ll almost certainly say, “Because they are so smooth.” Yet one of the most water repellent leaves in the world, that of the Lotus (Nelumbo nucifera), isn’t smooth at all; it has one of the most microscopically rough leaf surfaces imaginable.

Instead, water that falls on the leaf of the lotus plant “floats” on a maze of air trapped in the myriad crevices of the leaf surface, so that the slightest breeze or tilt in the leaf causes balls of water to just roll off, taking attached dirt particles with them.

Now, microscopically rough surface additives have been introduced into a new generation of paint, glass, ceramic and other finishes, greatly reducing the need for chemical or laborious cleaning. For example, GreenShield, a fabric finish inspired by lotus leaves, achieves the same performance as conventional finishes while using eight times less harmful chemicals.

Termite-Engineering

We generally think of termites as destroying buildings, not helping design them. But the Eastgate building, an office complex in Harare, Zimbabwe, has an air conditioning system modeled on the self-cooling mounds of Macrotermes michaelseni, termites that maintain the temperature inside their nest to within one degree, day and night (while the temperature outside swings from 42 °C to 3 °C.

The operation of buildings represents 40 per cent of all the energy used by humanity, so learning how to design them to be more sustainable is crucial.

Architect Mick Pearce collaborated with engineers at Arup Associates to design Eastgate, which uses 90 per cent less energy for ventilation than conventional buildings its size, and has already saved the building owners over $3.5 million dollars in air conditioning costs.

Learn more about the fascinating world of biomimicry here: http://www.biomimicryinstitute.org/

Source : http://www.unep.org/

Indonesia and UN Launch Joint Effort to Curb Deforestation

http://indonesia-oslo.no/wp-content/uploads/2010/03/hutan-indonesia1.jpg

Indonesia`s Forestry Ministry and the United Nations launched a UN Collaborative Program on Reducing Emissions from Deforestation and Forest Degradation (UN-REDD) with a kick-off workshop opened by Forestry Minister Zulkifli Hasan.

“Our country is very vulnerable, it has 80,000 kilometers of coast line, and more than 17,000 islands, big and small. Many people depend on agriculture, forestry and fisheries for livelihood and food security. Many of these forest dependent communities still live in poverty,” Minister Zulkifly said here Tuesday.

In his opening remarks, the minister also emphasized the danger of climate change and asked people to act immediately.

The minister also highlighted the importance of local communities in REDD (Reducing Emissions from Deforestation and forest Degradation) programs), and to make sure that the program will help them get a better life while preserving the forests and biodiversity, he said.

Under the joint initiative of the United Nations Development Program (UNDP), Food and Agriculture Organization (FAO) and the United Nations Environment Program, and funded by the government of Norway, the United Nations will assist Indonesia in preparing the National REDD Implementation.

This requires preparation of policy, coordination between different REDD initiatives and testing of methodologies on province and district level.

Based on the UN-REDD program, the project total budget which reached some 5.6 million US dollars where the fund is provided by the Norwegian government as the donor country and will be working with FAO (Food and Agriculture Organization), UNDP (United Nations Development Programme), UNEP (United Nations Environment Programme) and the Forestry Ministry during 2009-2011.

The program will pilot its activities in Sulawesi Island. With other REDD initiatives being located in islands of Sumatra, Kalimantan and Java, this further expands REDD in Indonesia.

The UN Resident Coordinator El-Mustofa Benlamnih highlighted that the UN-REDD program will support the Ministry of Forestry to get ready for national REDD implementation.

“The UN gives technical and policy advice and facilities coordination between REDD initiatives,” he said.

REDD has become an eminent priority for Indonesia because deforestation and forest degradation still represent a major source of green house gas emissions.

Source : Antara ,

http://indonesia-oslo.no/indonesia-and-un-launch-joint-effort-to-curb-deforestation/




ENVIRONMENT: Forests May Depend on Survival of Native People

By Stephen Leahy

MONTPELLIER, France, Mar 29, 2010 (IPS) - After the failures in Copenhagen to agree on a new climate protection treaty, and more recently at the Doha meetings on trade in endangered species to prevent bluefin tuna from going extinct, indigenous forest communities may offer examples of sensible governance for shared resources on a small planet.

Hundreds of poor Mexican Zapotec indigenous farmers have become owners of a multi-million-dollar diversified forest industry, offering an important model of a community-based enterprise that supports local people and conserves the natural environment, says David Barton Bray, a professor and associate chair in the Department of Earth and Environment at Florida International University in Miami.

The farmers of Ixtlán de Juarez, a forest community in the Sierra Norte mountains of central Mexico, utilise their strong traditional community values and communal ownership of more than 21,000 hectares of pine and oak forest to run a successful business that benefits the entire community.

There is no private property, and rather than establishing a business to maximise profits, the people of Ixtlán, and in other Zapotec communities of Mexico with similar forest-based enterprises, focus on job creation, reducing emigration to cities and enhancing the overall well-being of the community, Bray told participants at the Smallholder and Community Forestry conference here in Montpellier.

"Communities will be more important in the years to come because they can address vital issues that the state and the market cannot," Bray, an expert on community forests in Mexico and Central America, told IPS.

The survival of much of the world's forests may well depend of the survival of local communities. A quarter of the world's remaining forests are controlled by about one billion local people, says Estebancio Castro Diaz of the Kuna Nation in Panama, who is executive director for the International Alliance of Indigenous and Tribal Peoples of Tropical Forests.

"Local control is good for the people and good for the forest," Castro Diaz told participants attending the conference organised by the Centre for International Forestry Research, headquartered in Indonesia, the French research institute for development and the French international research centre for agricultural development.

"The forest is a supermarket for us, it is not just about timber," he said.

For those reasons, more than 90 percent of the forests controlled by the Kuna people are still standing. "We need to communicate there are broad benefits to the larger society for local control of forests," Diaz said.

In sharp contrast to the usual nation-state or private enterprise overexploitation of commonly-held lands, oceans or other resources - characterised as the "tragedy of the commons" - local communities can set and enforce rules to maintain their landscapes, conserve biodiversity and improve livelihoods for the long term, Bray suggests.

The glue and the grease that makes this all work is social capital, he adds. Communal trust, deeply shared values that arise from long experience and knowledge are some of the ingredients of social capital.

In Mexico's Ixtlán, community service is obligatory but goes far beyond being a "volunteer" as understood in developed countries. Virtually everything in the community is run by local people as part of their 'duties' as a community member.

This includes being part of administration, neighbourhood, school and church committees to performing the actual roles of community policeman to municipal president, says Bray. At any one time, 10 percent of the adults are involved and everyone has physical labour obligations that require up to 20 days a year for things like road repair, fire fighting and so on.

All of this is overseen by an assembly of members of the community that meets four times a year in days-long sessions. Here, policy decisions and elections to fill the various roles are made as well as the election of leaders who hold three-year terms. In return community members receive extraordinary benefits compared to other poor regions, including health and social benefits, above-average wages for work in commercial enterprises, access to low-interest loans, old-age pensions and more, he says.

The Ixtlán forestry enterprise employs up to 280 people and includes a tree nursery, saw mill and furniture making factory. About 7,500 of the 21,000 hectares of community forest is under commercial use and certified by the Rainforest Alliance and WWF. That certification illustrates the need for support beyond the community including government, markets and NGOs.

Bray acknowledges the timber harvest, although well-managed, is changing the character of the forest and reducing the number and diversity of species. It's a tradeoff, he says. The local people need the income but they are managing forests for the long term.

"Done right, timber production can increase forest cover and incomes for local people," Bray says based on his studies.

Of the 2,300 local communities in Mexico who are involved in timber production, about one-third have their own equipment, saw mills or furniture-making facilities, which is unique in Latin America. Virtually everywhere else timber is harvested by commercial logging companies, often to the detriment of local people and the environment.

In an effort to change this, the World Bank, FAO, IUCN and others have formed a "Growing Forests Partnership" to find ways to support community-managed forests, said Chris Buss of IUCN. Not only is this partnership trying to ensure that indigenous and local people are involved in their national government's forestry policy, but also to find ways to channel financial investment into local forest management be it for timber, Brazil nuts or other uses.

Source : http://ipsnews.net/


World deforestation decreases, but remains alarming in many countries

Policy Board 4
Credits: FAO
Forest cleared for hillside rice cultivation

Source: www.fao.org
25 March 2010, Rome

FAO publishes key findings of global forest resources assessment

World deforestation, mainly the conversion of tropical forests to agricultural land, has decreased over the past ten years but continues at an alarmingly high rate in many countries, FAO announced today.

Globally, around 13 million hectares of forests were converted to other uses or lost through natural causes each year between 2000 and 2010 as compared to around 16 million hectares per year during the 1990s, according to key findings of FAO's most comprehensive forest review to date The GlobalForest Resources Assessment 2010. The study covers 233 countries and areas.

Brazil and Indonesia, which had the highest loss of forests in the 1990s, have significantly reduced their deforestation rates. In addition, ambitious tree planting programmes in countries such as China, India, the United States and Viet Nam - combined with natural expansion of forests in some regions - have added more than seven million hectares of new forests annually. As a result the net loss of forest area was reduced to 5.2 million hectares per year between 2000 and 2010, down from 8.3 million hectares annually in the 1990s.

The world's total forest area is just over four billion hectares or 31 percent of the total land area. The net annual loss of forests (when the sum of all gains in forest area is smaller than all losses) in 2000-2010 is equivalent to an area about the size of Costa Rica.

Biggest losses in South America, Africa

South America and Africa had the highest net annual loss of forests in 2000-2010, with four and 3.4 million hectares respectively. Oceania also registered a net loss, due partly to severe drought in Australia since 2000.

Asia, on the other hand, registered a net gain of some 2.2 million hectares annually in the last decade, mainly because of large-scale afforestation programmes in China, India and Viet Nam, which have expanded their forest area by a total of close to four million hectares annually in the last five years. However, conversion of forested lands to other uses continued at high rates in many countries.

In North and Central America, the forest area remained fairly stable, while in Europe it continued to expand, although at a slower rate than previously.

"For the first time, we are able to show that the rate of deforestation has decreased globally as a result of concerted efforts taken both at local and international level," said Eduardo Rojas, Assistant Director-General of FAO's Forestry Department.

"Not only have countries improved their forest policies and legislation, they have also allocated forests for use by local communities and indigenous peoples and for the conservation of biological diversity and other environmental functions. This is a very welcoming message in 2010 - the International Year of Biodiversity.

"However, the rate of deforestation is still very high in many countries and the area of primary forest - forests undisturbed by human activity - continues to decrease, so countries must further strengthen their efforts to better conserve and manage them", he added.

Forests and climate change

Forests play an important part in climate change mitigation. Forests store a vast amount of carbon. When a forest is cut down and converted to another use, carbon is released back into the atmosphere.

"A lower deforestation rate and the establishment of new forests have helped bring down the high level of carbon emissions from forests caused by deforestation and forest degradation", said Mette Løyche Wilkie, the Coordinator of the Assessment.

"But we need to look forward because the large tree planting programmes in China, India and Viet Nam, accounting for most of the recent gains in forest area, are scheduled to end by 2020," she added. "That means we have a short window of opportunity to put in place effective and permanent measures to significantly reduce the current rates of deforestation and forest degradation. Without such interventions we risk a sudden return to the high rates of net forest loss and of carbon emissions from forests, which we had in the 1990s," she said.

FAO's Global Forest Resources Assessments are published every five years. More than 900 specialists from 178 countries were involved in the Global Forest Resources Assessment 2010. The full report of this Assessment will be released in October 2010.

Key findings

Other key findings in the report included:

  • Brazil lost an average of 2.6 million hectares of forest annually in the last ten years as compared with 2.9 million hectares per year in the 1990s while Indonesia's figures were respectively 0.5 and 1.9 million hectares per year.
  • Primary forests account for 36 percent of total forest area but have decreased by more than 40 million ha since 2000. This is largely due to reclassification of primary forest to "other naturally regenerated forests" because of selective logging or other human interventions.
  • The area of forest in national parks, wilderness areas and other legally protected areas has increased by more than 94 million hectares since 1990 and it now equals 13 percent of the total forest area.
  • Forests are among the world's chief carbon sinks. They store some 289 gigatonnes (Gt) of carbon in trees and vegetation. The carbon stored in forest biomass, deadwood, litter and soil together is more than all the carbon in the atmosphere. Globally, carbon stocks in forest biomass decreased by an estimated 0.5 Gt a year in 2000-2010, mainly due to a reduction in total forest area.
  • Fires, pests and diseases are causing increased damage to forests in some countries. On average, one percent of all forests was reported to be significantly affected each year by forest fires. Outbreaks of forest insects damage some 35 million hectares of forest annually. Extreme weather events such as storms, blizzards and earthquakes also took a heavy toll in the past decade.
  • Seventy-six countries have issued or updated their forest policies since 2000 and 69 countries - primarily in Europe and Africa - have enacted or amended their forest laws since 2005.
  • Data collection for the Global Forest Resources Assessment is becoming more comprehensive and precise. New data and additional information on afforestation and on natural expansion of forests for the past 20 years has made it possible to estimate rates of deforestation and loss from natural causes more accurately. The new global estimate for 1990 to 2000 (close to 16 million ha per year) is higher than previously estimated (13 million ha), because it now also includes deforestation within countries that have had an overall net gain in forest area.
  • A remote-sensing survey of forests, led by FAO, sampling some 13 500 sites over a period of 15 years, will provide even more accurate data on global and regional rates of deforestation by the end of 2011.

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