Record High Readings Of Carbon Dioxide Raise Concern

Meera Dolasia
Sat, 18 May 2013 08:45:14 -0700

On Thursday, May 9th, 2013, Federal scientists overseeing the oldest greenhouse gas monitoring system situated in Hawaii, reported that worldwide levels of carbon dioxide, the chief culprit behind global warming had reached 400 parts per million, a milestone never been encountered by humans before.