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A compendium of science-based information

Podcast: Digging Into Past Climate

What could the effects of climate change be?

Climate Change in Cities: Observations, Impacts, and Solutions

Recent western tree-kill by bark beetles has been the worst recorded

Warming climate is helping bark beetles spread in the West

Bark beetle outbreaks may influence forest fire risk

The Challenge of Understanding, Monitoring, and Managing the Health of Our Planet

Energy efficiency can reduce CO2 emissions at a net profit

Gallery

Top 10 Hardest Hit States of 2011 This slideshow recaps the year's extraordinarily destructive climate and weather events, including searing heat waves, parching

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