Particulate pollution cuts carbon dioxide, model shows

Published in Physics World, 22 Apr 2009

Falling levels of aerosol pollution could make it much harder to curb the total amount of CO2 in the atmosphere. That is the conclusion of climate researchers in the UK and Switzerland, who have found that pollution in the form of aerosol particles gives a dramatic boost to plants’ photosynthesis.

Large amounts of aerosols have been linked previously to a period of “global dimming” from the 1950s to the 1980s, when the amount of visible sunlight reaching the Earth’s surface was fractionally reduced. […]

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