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Carbon Dioxide

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Maybe It Wasn't 400 PPM After All . . . - Tim Profeta, Huffington Post

The National Oceanic and Atmospheric Administration (NOAA) announced last week that carbon dioxide concentrations at the Mauna Loa Observatory in Hawaii surpassed the milestone 400 parts...

Cutting Carbon Dioxide Isn't Enough - Lawrence Krauss, Slate

According to data being gathered at the Mauna Loa Observatory in Hawaii, which has been monitoring atmospheric carbon dioxide since 1958, the CO2 concentration in the Earth’s...

That's It! We Just Hit 400 PPM - Al Gore, Huffington Post

Yesterday, for the first time in human history, concentrations of carbon dioxide, the primary global warming pollutant, hit 400 parts per million in our planet's atmosphere. This number is...

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