News tagged with volcanic activity

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The Carbon Cycle Before Humans

Geoengineering -- deliberate manipulation of the Earth's climate to slow or reverse global warming -- has gained a foothold in the climate change discussion. But before effective action can be taken, the Earth's ...

Feb 16, 2010 3.1 / 5 (19) 1 | with audio podcast

The greenhouse gas that saved the world

When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, ...

Aug 18, 2009 3.6 / 5 (9) 7