Climate change: The long reach

Earth may face far warmer temperatures than previous estimates had indicated

By Stephen Ornes, 16:57 PM August 22, 2013

Earth is warming. Sea levels are rising. There’s more carbon in the air, and Arctic ice is melting faster than at any time in recorded history. Scientists who study the environment to better gauge Earth’s future climate now argue that these changes may not reverse for a very long time. Think millennia.


People burn fossil fuels like coal and oil for energy. That burning releases carbon dioxide, a colorless gas. In the air, this gas traps heat at Earth’s surface. And the more carbon dioxide rel...

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