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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: David Evans

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Favourite climate myths by David Evans

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

Climate myths by Evans What the Science Says Usage
"There's no tropospheric hot spot"

We see a clear "short-term hot spot" - there's various evidence for a "long-term hot spot".

4
"Climate scientists are in it for the money"

Climate scientists could make far more money in other careers - most notably, working for the oil industry.

1
"Climate sensitivity is low" Net positive feedback is confirmed by many different lines of evidence. 1
"Temp record is unreliable" The warming trend is the same in rural and urban areas, measured by thermometers and satellites. 1
"It's microsite influences"

Microsite influences on temperature changes are minimal; good and bad sites show the same trend.

1
"Hansen's 1988 prediction was wrong"

Jim Hansen had several possible scenarios; his mid-level scenario B was right.

1
"Ice age predicted in the 70s" The vast majority of climate papers in the 1970s predicted 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 cooling" The last decade 2000-2009 was the hottest on record. 1
"We're coming out of the Little Ice Age"

Scientists have determined that the factors which caused the Little Ice Age cooling are not currently causing global warming.

1
"It's a 1500 year cycle"

Ancient natural cycles are irrelevant for attributing recent global warming to humans.

1
"There's no empirical evidence" There are multiple lines of direct observations that humans are causing global warming. 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's cosmic rays" Cosmic rays show no trend over the last 30 years & have had little impact on recent global warming. 1

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