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Climate Change in Cities: Observations, Impacts, and Solutions

Responses of Communities and Ecosystems to Global Changes

Bark beetle outbreaks may influence forest fire risk

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

The US federal government has ruled that CO2 is a pollutant


Spring Ahead: Warmer Temperatures Arriving Earlier On the current greenhouse emissions path, spring may start an average of three weeks earlier by 2100.

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