She wants to figure out which populations the pollution might be affecting, and where it is interacting with other pollution sources. (scientificamerican.com)
Global warming from CO2 build - up in the atmosphere is different from other pollution problems society has faced. (ucsusa.org)
They say that by packaging reductions in greenhouse gas emissions with other environmental measures, like cutting other power plant emissions, they could win concessions on other pollution rules. (nytimes.com)