Breakthrough in Monitoring Tropical Deforestation Announced in Copenhagen
This CLASlite image of the Amazon Basin shows deforested regions in pink and blue and intact forests in green. (Courtesy Greg Asner/CLASlite)
Tropical forest destruction accounts for some 20% of global greenhouse gas emissions. But quantifying these emissions has not been easy, particularly for tropical nations. New technology, developed by a team of scientists at Carnegie’s Department of Global Ecology, is revolutionizing forest monitoring by marrying free satellite imagery and powerful analytical methods in an easy-to-use, desktop software package called CLASlite. Thus far, 70 government, non-government, and academic organizations in five countries have adopted the technology, with more on the horizon. The team announced its new web site for CLASlite users at the Copenhagen climate meetings today (http://claslite.ciw.edu).
To support international policy discussions and to solve on-the-ground needs for forest monitoring, CLASlite is being rapidly disseminated through a tailored, demand-driven technology transfer to government, academic and non-government institutions of the Andes and Amazon regions. (more…)
The End of Deforestation in the Brazilian Amazon?
Daniel Nepstad, a senior scientist at the Woods Hole Research Center and the study's lead author
A new article in the December 4 issue of Science addresses how the combined efforts of government commitments and market transition could save forest and reduce carbon emissions in Brazil. The Policy Forum brief, entitled “The End of Deforestation in the Brazilian Amazon” was authored by contributors from the Woods Hole Research Center, Instituto de Pesquisa Ambiental da Amazonia (IPAM), Universidade Federal de Minas Gerais, Aliança da Terra, Environmental Defense Fund, University of Florida, Universidad Rey Juan Carlos, and the Universidade Federal do Pará.
According to Daniel Nepstad, a senior scientist at the Woods Hole Research Center and the study’s lead author, “market forces and Brazil’s political will are converging in an unprecedented opportunity to end deforestation in the Brazilian Amazon with 80 percent of the forest still standing.”
Brazil has lowered deforestation rates 64 percent since 2005. This remarkable achievement was possible through a government crack-down on illegal activities in the region. It was helped by a retraction of the cattle and soybean industries, and a growing effort to exclude deforesters from the beef and soy markets. The article describes how Brazil could build upon this progress to end forest clearing by the year 2020, and the additional funding that will be required to reach this goal.
The study estimates that $6.5 to $18 billion will be needed from 2010 to 2020 to achieve the end of deforestation, resulting in a 2 to 5 percent reduction in global carbon dioxide emissions. The steps include the support of low-deforestation livelihoods for forest peoples and smallholders; identifying and rewarding responsible cattle ranchers and farmers; improved enforcement of environmental laws; and investments in protected area management. This estimate utilizes a sophisticated economic model of the Amazon region that estimates and maps the value of forgone profits from ranching and soy farming that are associated with forest conservation. (more…)
Reducing Greenhouse Gases May Not Be Enough to Slow Climate Change
by David Terraso
Georgia Tech City and Regional Planning Professor Brian Stone publishes a paper in the December edition of Environmental Science and Technology that suggests policymakers need to address the influence of global deforestation and urbanization on climate change, in addition to greenhouse gas emissions.
According to Stone’s paper, as the international community meets in Copenhagen in December to develop a new framework for responding to climate change, policymakers need to give serious consideration to broadening the range of management strategies beyond greenhouse gas reductions alone.
“Across the U.S. as a whole, approximately 50 percent of the warming that has occurred since 1950 is due to land use changes (usually in the form of clearing forest for crops or cities) rather than to the emission of greenhouse gases,” said Stone. “Most large U.S. cities, including Atlanta, are warming at more than twice the rate of the planet as a whole – a rate that is mostly attributable to land use change. As a result, emissions reduction programs – like the cap and trade program under consideration by the U.S. Congress – may not sufficiently slow climate change in large cities where most people live and where land use change is the dominant driver of warming.” (more…)
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