This map shows the average chlorophyll concentration in the global oceans from July 2002-may 2010.
这张地图显示了从2002年7月至2010年5月间全球海洋的平均叶绿素浓度。
The concentration of atmospheric carbon, an important indicator of global warming, has shot from 280 parts per million in pre-industrial times to 386 PPM last year and appears to be accelerating.
全球变暖的重要指示——大气的碳浓度——已经从工业社会前的280ppm (parts per million)激增到386 p pm,而且这一速度似乎还在增加。
350’s ultimate goal is to achieve global action to lower the concentration of carbon dioxide in the atmosphere to 350 parts per million.
350的终极目标是要把全球温室气体浓度削减至350ppm二氧化碳当量。
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