New paper: man-made aerosols have had a net cooling effect since beginning of industrial revolution

New paper: man-made aerosols have had a net cooling effect since beginning of industrial revolution

Watts Up With That?

From Smith et al. 2004 "Historical Sulfur Dioxide Emissions 1850-2000: Methods and Results" -PNNL Historical Sulfur Dioxide Emissions from 1850

More aerosols, means more clouds, which means cooler temperatures. Now that we are cleaning up aerosols worldwide, this may explain why the Earth is getting slightly warmer – more sunlight reaches the surface

A paper published today in Science claims the transition from “pristine” to “slightly polluted” atmosphere at the beginning of the industrial revolution in the 18th century had a “dramatic aerosol effect [of increasing] clouds” over the oceans. According to the authors,

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