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Deforestation in Biological News

The drivers of tropical deforestation are changing, say scientists

A shift from poverty-driven to industry-driven deforestation threatens the world's tropical forests but offers new opportunities for conservation, according to an article coauthored by William Laurance of the Smithsonian Tropical Research Institute in Panama. "New Strategies for Conserving Tropica...

Purdue researchers propose way to incorporate deforestation into climate change treaty

WEST LAFAYETTE, Ind. - Purdue University researchers have proposed a new option for incorporating deforestation into the international climate change treaty. Kevin Gurney, lead author of the proposal and an associate director of the Purdue Climate Change Research Center, will provide testimony ...

Forest peoples' rights key to reducing emissions from deforestation

OSLO (15 October 2008)Unless based on respect for the rights of indigenous peoples and forest communities, efforts by rich countries to combat climate change by funding reductions in deforestation in developing countries will fail, and could even unleash a devastating wave of forest loss, cultural...

Confirmed -- deforestation plays critical climate change role

Dr Pep Canadell, from the Global Carbon Project and CSIRO Marine and Atmospheric Research, says today in the journal Science that tropical deforestation releases 1.5 billion tonnes of carbon each year into the atmosphere. "Deforestation in the tropics accounts for nearly 20 per cent of carbon em...

End of deforestation in view? Experts advance new way to size up global forest resources

An increasing number of countries and regions are transitioning from deforestation to afforestation, raising hopes for a turning point for the world as a whole, according to researchers advancing a more sophisticated approach to measuring forest cover. The novel approach looks beyond simply how m...

Report shows deforestation threatens Brazil's Pantanal

Deforestation from increased grazing and agriculture has destroyed 17 percent of the native vegetation in Brazil's Pantanal, considered the world's largest wetland. A new study published by Conservation International sounds an alarm for the Paraguay River Basin, which includes the Pantanal. Conti...

Tropical Atlantic cooling and African deforestation correlate to drought, report scientists

Against the backdrop of the Montreal Summit on global climate being held this week, an article on African droughts and monsoons, by a University of California, Santa Barbara scientist and others, which appears in the December issue of the journal Geology, underlines concern about the effects of glo...

Tropical Deforestation affects rainfall in the U.S. and around the globe

Today, scientists estimate that between one-third and one-half of our planet's land surfaces have been transformed by human development. Now, a new study is offering insight into the long-term impacts of these changes, particularly the effects of large-scale deforestation in tropical regions on t...

Climate change poker: The barriers which are preventing a global agreement

...er barriers delegates will face in their bid to reach an agreement on a post-2012 framework are issues evolving around the reduction of emissions from deforestation and forest degradation, and how to implement adaptation to climate change. Even if some consensus is reached in Copenhagen, there is however no gua...

New monkey discovered in Brazil

...the region, particularly a major highway cutting through the Amazon that is currently being paved. Conservationists fear the highway could fuel wider deforestation in the Amazon over the next two decades. Other threats to the region include a proposed gas pipeline and two hydroelectric dams currently in the begin...

Rising acidity levels could trigger shellfish revenue declines, job losses

...he next 50 years, according to a new study by researchers at the Woods Hole Oceanographic Institution (WHOI). Intensive burning of fossil fuels and deforestation over the last two centuries have increased CO 2 levels in the atmosphere by almost 40 percent. The oceans have absorbed about one-third of all human-...

Cantabrian cornice has experienced seven cooling and warming phases over past 41,000 years

...tion by woodland species started to decline in the area only at the end of the Holocene, when human activities began to change the landscape, and when deforestation resulting from permanent settlements and agriculture can be observed "even though the climate continued to be favourable to these kinds of organisms"....

Who will pick up the bill?

...s forever and may have a direct impact on our economy, resulting in substantial revenue declines and job losses. Intensive fossil-fuel burning and deforestation over the last two centuries have increased atmospheric CO2 levels by almost 40%, which has in turn fundamentally altered ocean chemistry by acidifying...

Human role in Indonesian polluting forest fires -- Guido van der Werf in Nature Geoscience

...istence agriculture to large-scale industrial agriculture and agroforestry. In order to support this change, large areas of peatlands were drained and deforestation took place on a grand scale. These changes in land use and population density made Kalimantan far more fire prone. Although the enormous influence of ...

CI president receives Roger Tory Peterson Medal

...s, but also presents new opportunities to increase the global value of tropical forests and other natural systems. In particular, Mittermeier noted deforestation is a major contributor to greenhouse gas emissions causing climate change, and how conserving tropical forests offers the multiple benefits of climate...

NASA study says climate adds fuel to Asian wildfire emissions

...e science is telling us that we need strategies to reduce the occurrence of deforestation fires and peatlands wildfires. Without some new strategies, emissions from ...ter models -- to screen for and differentiate between carbon emissions from deforestation versus general emissions. Carbon monoxide is a good indicator of the occurr...

Fire is important part of global climate change, report scientists

... 24 issue of the journal Science . The authors determined that intentional deforestation fires alone contribute up to one-fifth of the human-caused increase in emis...'t normally see fires," she says, noting that in the humid tropics a lot of deforestation fires are occurring, usually to expand agriculture or cattle ranching. "Wet...

Biofuels could hasten climate change

...eir obligations under another (Convention on Biological Diversity) but may actually hasten global climate change. According to the study, reducing deforestation is likely to represent a more effective climate-change mitigation strategy than converting forest for biofuel production, and it may help nations meet...

Seven recommendations from Aarhus to COP15

...new habitats etc). Forest conservation including Reduced Emissions from deforestation and Degradation (REDD) constitute a major and cost-effective CC mitigation ...itigation is therefore forest conservation including reduced emissions from deforestation and forest degradation in developing countries (REDD), especially in relati...

Atmospheric scientists trace the human role in Indonesian forest fires

..."Ultimately, this abrupt transition can be attributed to rapid increases in deforestation and population growth. The resulting occurrences of haze currently rank amo...n resistant to large fires even in dry years until population density and deforestation increased substantially and land use changed from small-scale subsistence a...

Coffee cultivation good for diversity in agrarian settlements but not in forests

... ecosystems in southwestern Ethiopia with an eye to understanding the impact of coffee systems on plant and animal diversity and the role of coffee in deforestation and forest conservation. ...

One-fifth of fossil-fuel emissions absorbed by threatened forests

...ropical forests." "Predominantly rich polluting countries should be transferring substantial resources to countries with tropical forests to reduce deforestation rates and promote alternative development pathways," says Dr Lewis. There are also broader implications for rainforest biodiversity, as the ecolog...

Biofuels boom could fuel rainforest destruction, Stanford researcher warns

...their stored carbon to the atmosphere as carbon dioxide. That creates what's called a carbon debt," Gibbs said. "This is because the carbon lost from deforestation is much greater than the carbon saved from using the current-generation biofuels." Indeed, tropical forests are the world's most efficient storehous...

New satellite techniques for looking at climate change

.... "There is going to be a need for a third party to assess or validate the estimates given by countries as well to monitor any changes in them such as deforestation or degradation." "Since one of the important variables for predicting climate change is to know what the balance between carbon sinks and sources ...

Study: Did early climate impact divert a new glacial age?

...f years ago with the onset of large-scale agriculture in Asia and extensive deforestation in Europe. What's more, according to the same computer simulations, the ...ntroduction of large-scale rice agriculture in Asia, coupled with extensive deforestation in Europe began to alter world climate by pumping significant amounts of gr...

Time running out on coral reefs as climate change becomes increasing threat

...combined with bleaching has endangered wide ranges of Caribbean coral reefs, and increasing human activity pressures including pollution, development, deforestation and overfishing in East Africa, South Asia, Southeast Asia, populated areas of the Pacific and Caribbean. One particular threat is the increase in "bo...

Tropical forest carbon monitoring gets big boost

... Stanford, CAA new and improved tool to monitor deforestation and degradation in tropical forests has just gotte...heir desktops. The technology will rapidly advance deforestation and degradation mapping in Latin America, and will...rcent of global greenhouse gas emissions come from deforestation and degradation of tropical forests," remarked pro...

Pitt research finds that low concentrations of pesticides can become toxic mixture

...lnerable to contamination; once plentiful across North America, including Pennsylvania, their population has declined in recent years as pollution and deforestation have increased. Relyea published a paper in the Oct. 1 edition of Ecological Applications reporting that gradual amounts of malathionthe most pop...

Fertilizers -- a growing threat to sea life

...eake Bay, where it has accumulated and degraded both the natural wildlife and water quality. The combination of the increasing use of fertilizers, deforestation and the draining of wetlands and floodplains to provide more land for crops, has led to an imbalance in the nitrogen cycle, in particular reduced oppo...

University of Leicester professor adds new perspective to rainforest debate

...ing the rainforests. Professor Heiko Balzter told 200 scientists and foresters in Brazil "We need advanced radar satellites for monitoring tropical deforestation and forest biomass". The researchers from South America, the US, Canada and Europe had come together for the 8th Seminar on Remote Sensing and Geog...

Barcelona Declaration 2008: Challenges and Pathways to Earth Sustainability

...easures of economic performance will help countries to choose more sustainable and equitable development pathways. This will include the decoupling of deforestation in tropical regions from development. Wasting natural capital and destroying options for the future is irrational behavior. It occurs because the info...

Don't blame cities for climate change, see them as solutions

...mental Panel on Climate Change to show that only two-fifths of all greenhouse gases from human activities are generated within cities. Agriculture and deforestation account for around 30 percent, and the rest are mostly from heavy industry, wealthy households and coal, oil or gas fuelled power stations located in ...

Growth in the global carbon budget

...nsity of their economy since 2005, based on data from the National Energy Administration in China. Decreasing forest cover, almost exclusively from deforestation in tropical countries, was responsible for an estimated 1.5 billion tons of emissions to the atmosphere above what was gained through new plantings. A...

Scientists point to forests for carbon storage solutions

... presence of water led to the increase in cloudy days. The Michigan forest's storage capacity also is affected by its land use history. A period of deforestation between 1880 and 1920 was followed by abandonment of the land and a rash of wildfires. Forests with similar histories store significantly less carbon ...

Bad sign for global warming: Thawing permafrost holds vast carbon pool

... its carbon is a hugely important question. Schuur said the burning of fossil fuels contributes about 8.5 billion tons of carbon dioxide each year. deforestation of the tropical forests and replacement of the forest with pasture or other agriculture is thought to add about 1.5 billion tons per year. How much pe...

BioScience tip sheet, September 2008

...ground. Deforestation, Mosquitoes, and Ancient Rome: Lessons for Today. Lara O'Sullivan, Andrew Jardine, Angus Cook, and Philip Weinstein. deforestation and associated ecological changes such as increased standing water probably exacerbated pestilence, believed to have been malaria, in and near Rome ar...

Extinction most likely for rare trees in the Amazon rainforest

... Common tree species in the Amazon will survive even grim scenarios of deforestation and road-building, but rare trees could suffer extinction rates of up to 50 percent, predict Smithsonian scientists and colleagues in the Aug. 12 issu...

EPA funds ground-breaking Lyme disease research

...health experts, earth scientists, and social scientists. Together, they will integrate data on ecosystems, human health and man-made stressors such as deforestation to investigate how environmental factors and people's behaviors contribute to disease transmission. ...

AGU journal highlights -- July 23, 2008

...t land use changes were not large enough to produce appreciable changes in basin runoff. This is perhaps because most land changes did not result from deforestation but instead involved converting grassland (pasture) to crops. However, the authors note that basin response, namely, that flows at the basin outlet no...

Paying to save tropical forests could be a way to reduce global carbon emissions

...uch money to put an end to a tenth of the tropical deforestation in the world, one of the top contributors to green... ton of carbon that could be saved through avoided deforestation in Africa, Central and South America, and Southeas...versity. "Compared to other options, an avoided deforestation program would be relatively cheap and practical fo...
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