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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 Misinformation by Source: Fred Singer

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Favourite climate myths by Fred Singer

Below are many of the climate myths used by Fred Singer plus how often each myth has been used.

Climate myths by Singer What the Science Says Usage
"Medieval Warm Period was warmer"

Globally averaged temperature now is higher than global temperature in medieval times.

1
"It cooled mid-century" Mid-century cooling involved aerosols and is irrelevant for recent global warming. 1
"CO2 lags temperature"

CO2 didn't initiate warming from past ice ages but it did amplify the warming.

1
"It warmed before 1940 when CO2 was low" Early 20th century warming is due to several causes, including rising CO2. 1
"Models are unreliable"

Models successfully reproduce temperatures since 1900 globally, by land, in the air and the ocean.

1
"Climate's changed before" Climate reacts to whatever forces it to change at the time; humans are now the dominant forcing. 1
"It's Urban Heat Island effect" Urban and rural regions show the same warming trend. 1
"It's cooling" The last decade 2000-2009 was the hottest on record. 1
"Greenland was green" Other parts of the earth got colder when Greenland got warmer. 1
"CO2 was higher in the past"

When CO2 was higher in the past, the sun was cooler.

1
"CO2 has a short residence time"

Excess CO2 from human emissions has a long residence time of over 100 years

1
"Climate sensitivity is low" Net positive feedback is confirmed by many different lines of evidence. 1
"It's waste heat"

Greenhouse warming is adding 100 times more heat to the climate than waste heat.

1
"The science isn't settled" That human CO2 is causing global warming is known with high certainty & confirmed by observations. 1

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