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4 total sentences available.
Firstly, the atmosphere may act like the glass of a green-house, letting through the light rays of the sun relatively easy, and absorbing a great part of the dark rays emitted from the ground, and it thereby may raise the mean temperature of the earth's surface.
Source: wiktionary
It is time to stop waffling so much and say that the evidence is pretty strong that the greenhouse effect is here.
Source: wiktionary
This contrasts strangely with Mr. Bush's campaign oratory last summer. “Those who think we are powerless to do anything about the greenhouse effect forget about the ‘White House effect’; as President, I intend to do something about it,” he said in Michigan on Aug. 31. […] Mr. Bush has not acted.
Source: wiktionary
In August 1988, Hansen had given dramatic testimony to Congress asserting that “the scientific evidence for the greenhouse effect is overwhelming.” “The greenhouse effect is real, it is coming soon, and it will have major effects on all peoples.”
Source: wiktionary