Climate coolers

Reducing methane, soot in the atmosphere could curb climate change

By Stephen Ornes, 19:12 PM January 25, 2012




Most global warming stories talk about carbon dioxide, the colorless gas that accumulates in the atmosphere and insulates the planet like a giant, invisible blanket. But carbon dioxide isn’t the only greenhouse gas. Another, called methane, also traps heats in Earth's atmosphere (one definition of the greenhouse effect) — more than 20 times as much as the same amount of carbon dioxide.  But unlike carbon dioxide, which can hover for hundreds of years, methane stays in the air for only about...

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