What's Happening & Why
Thousands of studies conducted by researchers around the world have documented increases in temperature at Earth’s surface, as well as in the atmosphere and oceans.
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Impacts on Society
Impacts related to climate change are evident across regions and in many sectors important to society—such as human health, agriculture and food security, water supply, transportation, energy, ecosystems, and others—and are expected to become increasingly disruptive in the coming decades.
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Response Options
The impacts of global climate change in the United States are already being felt and are projected to intensify in the future, especially without further action to reduce climate-related risks. As the impacts of climate change grow, Americans face decisions about how to respond.
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