Articles by Brian Kahn
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The World Passes 400 PPM Threshold. Permanently
Brian Kahn | Climate Central – TRANSCEND Media Service,
3 Oct 2016
2016 is the year that carbon dioxide officially passed the symbolic 400 ppm mark, never to return below it in our lifetimes, according to scientists. Because carbon pollution has been increasing since the start of the Industrial Revolution and has shown no signs of abating, it was more a question of “when” rather than “if” we would cross this threshold. The inevitability doesn’t make it any less significant, though.
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