Want to Slow Sea Level Rise? Curb 4 Pollutants

Posted by Robyn, April 17, 2013

slrSharp reductions in short-lived airborne pollutants could significantly slow sea level rise before 2100, a new study finds.

The four pollutants — black carbon, methane, ozone and hydrofluorocarbons — all cycle through the atmosphere more quickly than carbon dioxide, which lasts for centuries in the troposphere, the part of the atmosphere we live in and breathe. Carbon dioxide is the main culprit in Earth’s warming temperatures, which impacts sea level rise both by the expansion of water as it warms and by the melting of glacial ice.

Cutting the air pollutants, which all also act to trap heat in the atmosphere and last anywhere from a week to decade, worldwide by 30 to 60 percent over the next several decades would lower predicted sea level rise by 22 to 42 percent by 2100, according to the study, published April 14 in the journal Nature Climate Change.

via Want to Slow Sea Level Rise? Curb 4 Pollutants : Discovery News.

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