Ian Plimer wrongly claims that carbon dioxide emissions do not cause climate change

CLAIM
"there is no relationship between temperature and carbon dioxide emissions by ­humans[...] carbon dioxide has had a minuscule effect on global climate"

SOURCE: Ian Plimer, The Australian, 7 Aug. 2018

VERDICT

Ian Plimer incorrectly claims human-caused emissions are short-lived

CLAIM
"The ­atmospheric residency time of carbon dioxide is five years and it is quickly sequestered into plants, marine life, oceans and sediments."

SOURCE: Ian Plimer, The Australian, 7 Aug. 2018

VERDICT

President Trump’s claim that water supply policy has worsened California wildfires is baseless

CLAIM
"California wildfires are being magnified & made so much worse by the bad environmental laws which aren’t allowing massive amounts of readily available water to be properly utilized. It is being diverted into the Pacific Ocean."

SOURCE: President Donald Trump, Twitter, 5 Aug. 2018

VERDICT

Fred Singer incorrectly claims sea level rise is not caused by climate change

CLAIM
"Sea-level rise does not seem to depend on ocean temperature, and certainly not on CO2"

SOURCE: Fred Singer, The Wall Street Journal, 15 May 2018

VERDICT

Rush Limbaugh falsely claims there is no evidence of human-caused global warming

CLAIM
"There isn’t yet any empirical evidence for their claim that greenhouse gases even cause temperatures to increase."

SOURCE: Rush Limbaugh, The Rush Limbaugh Show, 2 April 2018

VERDICT

Breitbart repeats blogger’s unsupported claim that NOAA manipulates data to exaggerate warming

CLAIM
"NOAA has adjusted past temperatures to look colder than they were and recent temperatures to look warmer than they were."

SOURCE: James Delingpole, Breitbart, 20 February 2018

VERDICT

EPA’s Scott Pruitt incorrectly suggests climate change might not be “a bad thing”

CLAIM
"We know that humans have most flourished during times of, what, warming trends. I think there are assumptions made that because the climate is warming, that that is necessarily a bad thing."

SOURCE: Scott Pruitt, KSNV NBC Las Vegas, 6 Feb. 2018

VERDICT

President Trump’s claim of growing ice does not reflect reality

CLAIM
"The ice caps were going to melt. They were going to be gone by now, but now they're setting records"

SOURCE: Donald Trump, ITV, 28 Jan. 2018

VERDICT

Prof. John Christy incorrectly claims to show climate models are too sensitive to carbon dioxide

CLAIM
"the real atmosphere is less sensitive to CO2 than what has been forecast by climate models"

SOURCE: John Christy, The Daily Caller, 29 Nov. 2017

VERDICT

Former Prime Minister Tony Abbott wrongly claims Australia has warmed far less than data show

CLAIM
"unadjusted data suggests that temperatures in Australia have only increased by 0.3 degrees over the past century, not the 1 degree usually claimed"

SOURCE: Tony Abbott, Global Warming Policy Foundation, 9 Oct 2017

VERDICT