Will Earth's Ocean Boil Away?

Yes—a billion years from now, as the sun gets brighter. But could we make it happen sooner through climate change?

 

Venus, the hottest planet in the solar system, may have experienced runaway greenhouse effect early in its history.

...  Venus has a thick atmosphere that is 96.5 percent carbon dioxide, which keeps its surface at nearly 900°F (482°C). The planet's water boiled off to space long ago. Could that really happen on Earth, which is farther from the sun, and where the CO2 level is just now rising past 400 parts per million?

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