Current global climate models (GCMs) support with high confidence the view that rising greenhouse gases and other anthropogenic forcings account for nearly all observed global surface warming—slightly ...

One of the most pervasive misunderstandings of climate — even among some who publish on climate — is the belief that any long-term trend in a measured climate variable indicates a change in climate, ...

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What is the range of natural variability in climate? Climate is continually varying on time scales ranging from seasons to the lifetime of Earth. Natural climate changes can take place on short time ...

Decades of independent observations and improved methods strengthen the evidence that greenhouse gases are changing Earth’s climate.

Small islands around the world are facing serious and immediate challenges from climate change. Many people living in the Pacific islands and East Timor report their climate is changing. Climate ...