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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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	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
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Climate Misinformation by Source: Fred Singer

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Interview Dr. S. Fred Singer

URL: http://www.pbs.org/wgbh/warming/debate/singer.html
Date: 28 May 2007

Arguments by Singer	vs	What the Science Says
"Climate sensitivity is low"		Net positive feedback is confirmed by many different lines of evidence.
"Climate's changed before"		Climate reacts to whatever forces it to change at the time; humans are now the dominant forcing.
"CO2 has a short residence time"		Excess CO2 from human emissions has a long residence time of over 100 years
"CO2 lags temperature"		CO2 didn't initiate warming from past ice ages but it did amplify the warming.
"CO2 was higher in the past"		Climate has changed along with CO2 levels through geological time.
"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 cooling"		All the indicators show that global warming is still happening.
"It's Urban Heat Island effect"		Urban and rural regions show the same warming trend.
"It's waste heat"		Greenhouse warming is adding 100 times more heat to the climate than waste heat.
"Medieval Warm Period was warmer"		Globally averaged temperature now is higher than global temperature in medieval times.
"Models are unreliable"		Models successfully reproduce temperatures since 1900 globally, by land, in the air and the ocean.
"The science isn't settled"		That human CO2 is causing global warming is known with high certainty & confirmed by observations.
"Was Greenland really green in the past?"		Other parts of the earth got colder when Greenland got warmer.

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