Sulfur pollution masked effect of CO2 emissions
(NEWSER) - The vast amounts of coal China burned during the 2000s may have actually slowed down climate change, according to a new study. Researchers believe the sulfur pollution caused by burning coal deflected the sun's rays, causing a temporary plateau in warming, the AP reports. But while sulfur drops out of the air quickly, carbon dioxide, another byproduct, remains for a long time—and carbon dioxide's warming effects are beginning to be visible again. Temperatures lurched upward in 2009 and 2010, the study finds. More»
