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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Even so, during 2010-2014, people in parts of California, Arizona, Colorado, Texas, the Midwest and the Middle Atlantic still experienced more than 15 days a year in which ozone levels exceeded the US health-based air quality standard of 70 parts per billion (ppb) averaged over eight hours. Source: University of Leicester. Click to enlarge.

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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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Slated for a July 2011 start, it would regulate 1000 of the country's biggest polluters and 75 percent of the country’s greenhouse gas emissions. Climate change projections authored by Chinese scientists indicate that China’s annual mean air temperature is likely to rise by 1.3 ÂșC in 2020, and 2.3 ” [ 16 ].

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