Sentences with «carbon dioxide levels in the atmosphere»
This modification will also help plants take advantage of rising carbon dioxide levels in the atmosphere. (newscientist.com)
Scientists say it's apparent that human activity — namely burning coal, oil and natural gas — has been driving a rapid rise of carbon dioxide levels in the atmosphere. (edition.cnn.com)
And according to scientists who have 800,000 years of carbon records derived from glacial ice core samples, there is a strong link between earth temperatures and increased carbon dioxide levels in the atmosphere. (climatechangenationalforum.org)