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Novel carbon-trading scheme could stop large-scale extinctions

Date:
December 5, 2009
Source:
Smithsonian Tropical Research Institute
Summary:
Spatial distribution of biodiversity should be taken into account when calculating carbon credits in order to achieve conservation goals as well as greenhouse gas mitigation, argue researchers.

A new strategy for saving tropical forest species was published in the journal Science on the eve of the United Nations Framework Convention on Climate Change in Copenhagen, Denmark, by a team of researchers, including William Laurance, senior staff scientist at the Smithsonian Tropical Research Institute and distinguished professor at James Cook University. The authors state that wealthy countries should adopt a carbon-payment system that explicitly incorporates biodiversity values.

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"If we're smart we could combat global warming while saving some of the most endangered wildlife on Earth," said Laurance. "Billions of dollars will be spent on forest-carbon initiatives in the next decade, and this could translate into huge benefits for vanishing species if we focus some of the spending in places where tropical biodiversity is most imperiled."

Destruction of tropical forests causes about 20 percent of human-caused carbon emissions. In strategies to reduce carbon emissions from deforestation and forest degradation, carbon-producing nations pay tropical countries to keep some of their land in forest. The authors, mostly researchers working with Hugh Possingham, director of the Ecology Centre at the University of Queensland, evaluated several carbon-based credit scenarios.

"Dollar for dollar, a carbon-focused approach contributes little to slowing biodiversity loss and will save far fewer species than a biodiversity-focused strategy that targets the most imperiled forests," said lead author Oscar Venter, doctoral candidate at the University of Queensland.

A biodiversity-based system would change where carbon funds are spent, resulting in less money for areas like the Amazon where relatively few species are endangered because considerable forest remains. Spending to stem biodiversity loss would favor high-biodiversity nations in Southeast Asia and the Indian Ocean, where most forests have already vanished.

The team's findings are expected to draw attention at the forthcoming climate negotiations, where international leaders hope to hammer out a final strategy for combating global warming.


Story Source:

The above story is based on materials provided by Smithsonian Tropical Research Institute. Note: Materials may be edited for content and length.


Cite This Page:

Smithsonian Tropical Research Institute. "Novel carbon-trading scheme could stop large-scale extinctions." ScienceDaily. ScienceDaily, 5 December 2009. <www.sciencedaily.com/releases/2009/12/091203141930.htm>.
Smithsonian Tropical Research Institute. (2009, December 5). Novel carbon-trading scheme could stop large-scale extinctions. ScienceDaily. Retrieved November 21, 2014 from www.sciencedaily.com/releases/2009/12/091203141930.htm
Smithsonian Tropical Research Institute. "Novel carbon-trading scheme could stop large-scale extinctions." ScienceDaily. www.sciencedaily.com/releases/2009/12/091203141930.htm (accessed November 21, 2014).

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