Sentences with phrase «profound green house gas»
If C02 is such a profound green house gas, and it has risen from 280ppm to 380ppm over the last century or so -LRB-?)
http://www.realclimate.org/
Re Mark in SF @ 63: «If C02 is such a profound green house gas, and it has risen from 280ppm to 380ppm over the last century or so -LRB-?)