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"CO-2 Hits the Top Spot!"

3 years 4 months 2 weeks ago May 15, 2013 May 15, 2013 Wednesday, May 15 2013 May 15, 2013 3:00 AM in Pat Shingleton Column
By: Pat Shingleton

An Hawaii-based monitoring station tracks the amount of atmospheric carbon dioxide and last Thursday that amount inched closer to a record. The publication "Atlantic" reports that in 1988, NASA scientist James Hansen predicted that carbon dioxide would reach 350 parts per million by 2013 and last week's 400 ppm mark posted the highest daily mean concentration in human history. The environmental activist group "350.org." called the recent reading a "grim but predictable milestone." Scientists first registered the carbon scale briefly moving past 400 ppm last summer. Thursday's record was the first time a daily average has passed that point with predictions that 400 ppm readings could become common-place. Energy efficiency, renewable power and emission reductions resulted in a 13% decrease in carbon emissions over the last seven years.

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