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Featured Article
Air Quality in Megacities
Introduction Ambient air pollution in an increasingly urbanized world directly threatens the health of a large fraction of the world’s population. There is growing recognition that air-borne...
Featured Resource
Focus: Impacts of Humans and Their Economy on the Environment
The National Science Foundation (NSF) has issued a Dear Colleague Letter to the scientific community ". . . encouraging increased research . . . on the links among environment, society and the economy." Image Above: NSF is supporting research on...



