Earth
See also: Runaway climate changeEarth's climate has swung repeatedly between warm periods and ice ages during its history. In the current climate the gain of the positive feedback effect from increased atmospheric water vapor is well below that which is required to boil away the oceans. Climate scientist John Houghton has written that " is no possibility of runaway greenhouse conditions occurring on the Earth". However, climatologist James Hansen disagrees. In his Storms of My Grandchildren he says that burning coal and mining shale oil will result in runaway greenhouse on Earth.
Benton and Twitchett's have a different definition of a runaway greenhouse; events meeting this definition have been suggested as a cause for the Paleocene-Eocene Thermal Maximum and the great dying.
Read more about this topic: Runaway Greenhouse Effect
Famous quotes containing the word earth:
“I am quite serious when I say that I do not believe there are, on the whole earth besides, so many intensified bores as in these United States. No man can form an adequate idea of the real meaning of the word, without coming here.”
—Charles Dickens (1812–1870)
“The earth is ready, the time is ripe, for the authoritative expression of the feminine as well as the masculine interpretation of that common social consensus which is slowly writing justice in the State and fraternity in the social order.”
—Anna Garlin Spencer (1851–1931)
“A Republic! Look in the history of the Earth ... To be the first man—not the Dictator, not the Sylla, but the Washington or the Aristides, the leader in talent and truth—is next to the Divinity!”
—George Gordon Noel Byron (1788–1824)