Sentences with «atmospheric greenhouse gas levels»
And to eventually stop global warming, we have to stabilize atmospheric greenhouse gas levels first! (skepticalscience.com)
What makes it remarkable is that it coincides with 20 years of rapidly rising atmospheric greenhouse gas levels. (business.financialpost.com)
Meanwhile, atmospheric greenhouse gas levels grow, ice sheets melt, hurricanes become more ferocious, and the day of reckoning for the Earth looms closer. (americanprogress.org)