Greener Together
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Greener Together

365 Days of Climate Awareness 152–2009 State of the World Climate

In March — late winter — Arctic sea ice was 15.2 million km2, very close to 2008 and 4% below the 1979–2000 average.

Photo credit: Shutterstock

By Michael Sutherland

2009 World Climate Data

  • Global atmospheric CO2 concentration: 386.5ppm, +1.48 ppm from…

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