Global Warming

Plants Cool Planet More Under Higher Temperatures

Negative feedback mechanism

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Another powerful negative-feedback mechanism which acts to reduce the effects of global warming has been identified, as scientists say that rising temperatures cause plants to emit higher levels of planet-cooling aerosols.

"Aerosol effects on climate are one of the main uncertainties in climate models," explains Pauli Paasonen of Helsinki uni. "Understanding this mechanism could help us reduce those uncertainties and make the models better."