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CO2 Levels Reach Record-Breaking Milestone in Northern Hemisphere

2014-05-28 20:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Nature World: For the first time, carbon dioxide (CO2) levels have reached a record-breaking milestone, its monthly concentrations topping 400 parts per million (ppm) in April throughout the Northern Hemisphere, the World Meteorological Organization (WMO) reports. (Photo : Reuters/Yves Herman) For the first time, carbon dioxide (CO2) levels have reached a record-breaking milestone, its monthly concentrations topping 400 parts per million (ppm) in April throughout the Northern Hemisphere, the World Meteorological...

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