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Apr

24

2009
 
 

Five Alarm Planet



Fires’ effects are missing from climate predictions
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Earth is apparently one big ball of fuel just waiting to be torched. Carbon-rich vegetation, coupled with large swaths of dry, hot land and  large doses of atmospheric oxygen to fan the flames – and poof. Researchers writing in Science want the Intergovernmental Panel on Climate Change to wake up and smell the char.

Climate models do not properly account for fires on our flammable planet say the 22 authors of a paper.  They determined that intentional fires used to clear forests alone cause up to one-fifth of manmade carbon dioxide emissions. Since the 1980s, satellites have measured the global breadth of fires, but they also miss many outbreaks, they write. Climate change is expected to cause more frequent drought and burning in many areas.

But fires don’t only influence the climate, they also have major impacts on ecosystems; integrating these two concepts will be necessary to predict future changes, the study notes. – Jessica Leber

Source: Bowman, D.M.J.S. et al. 2009. Fire in the Earth System. Science. DOI: 10.1126/science.1163886

Image © Joegough, Dreamstime.com

Filed Under Biodiversity, Climate change, Community-based conservation, Habitat, Monitoring, Socio-political issues | 

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