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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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The Consensus Project

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	Climate's changed before
	It's the sun
	It's not bad
	There is no consensus
	It's cooling
	Models are unreliable
	Temp record is unreliable
	Animals and plants can adapt
	It hasn't warmed since 1998
	Antarctica is gaining ice
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Climate Misinformation by Source: Richard Lindzen

Richard Lindzen is an American atmospheric physicist and Alfred P. Sloan Professor of Meteorology at the Massachusetts Institute of Technology.

Articles

Global Warming: The Origin and Nature of the Alleged Scientific Consensus

URL: http://www.cato.org/pubs/regulation/regv15n2/reg15n2g.html
Date: 8 March 1992

Arguments by Lindzen	vs	What the Science Says
"Climate sensitivity is low"		Net positive feedback is confirmed by many different lines of evidence.
"Clouds provide negative feedback"		Evidence is building that net cloud feedback is likely positive and unlikely to be strongly negative.
"CO2 limits will harm the economy"		The benefits of a price on carbon outweigh the costs several times over.
"Earth hasn't warmed as much as expected"		This argument ignores the cooling effect of aerosols and the planet's thermal inertia.
"Hansen's 1988 prediction was wrong"		Jim Hansen had several possible scenarios; his mid-level scenario B was right.
"Ice age predicted in the 70s"		The vast majority of climate papers in the 1970s predicted warming.
"It cooled mid-century"		Mid-century cooling involved aerosols and is irrelevant for recent global warming.
"It warmed before 1940 when CO2 was low"		Early 20th century warming is due to several causes, including rising CO2.
"It's not urgent"		A large amount of warming is delayed, and if we don’t act now we could pass tipping points.
"Removing all CO2 would make little difference"		Removing CO2 would cause most water in the air to rain out and cancel most of the greenhouse effect.
"There is no consensus"		97% of climate experts agree humans are causing global warming.
"Water vapor is the most powerful greenhouse gas"		Rising CO2 increases atmospheric water vapor, which makes global warming much worse.

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