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Polar bears in the Arctic

As temperatures and sea levels rise, federal agencies are working to establish a national climate service to help communities, regions and nations respond to a changing planet.


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  • Iceberg

    Climate Change Today: Carbon dioxide emitted into the atmosphere by human activities is causing changes in Earth's surface temperature, rainfall and sea level.

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In Depth

  • Climate Change and Health

    Human health ebbs and flows with the seasons, but extreme weather, global climate change and shifting disease distribution drive the need for more active collaboration between climate scientists and public health experts.

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    Defining Cap and Trade

    Cap-and-trade programs harness the forces of supply and demand to change industrial practices and meet environmental goals.

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