Judith Curry

Judith Curry, former chair of the School of Earth and Atmospheric Sciences at Georgia Tech, consulted for oil and gas companies during her time in academia. She resigned from Georgia Tech in 2017 citing climate “craziness” and has been called out by other scientists for promoting debunked climate denial arguments. 

As climate-fueled Hurricane Idalia barreled toward Florida in August 2023, Curry appeared on Jesse Watters Primetime to argue that scientists have “seriously mischaracterized” the threat of climate change. She claimed that the “dominant factor” in climate change is “far and away” the “natural climate variability” of the Earth. (Earlier that same month, Curry published an op-ed in the New York Post, another Murdoch property, where she falsely claimed that the “overwhelming scientific consensus” on climate change is “manufactured” and suggested that scientists are incentivized by “fame and fortune” to push the idea that climate change is caused by human activity.)

John Christy

John Christy is “an atmospheric scientist who doubts the extent to which human activity has caused global warming,” according to The New York Times. (In reality, “more than 99.9% of peer-reviewed scientific papers agree that climate change is mainly caused by humans.”) He has regularly downplayed the link between climate change and extreme weather and has also pushed the false narrative — central to the Trump DOE climate report — that “CO2 is not the problem” because “carbon dioxide makes things grow. The world used to have five times as much carbon dioxide as it does now. Plants love this stuff. It creates more food.” 

During a deadly global heat wave in July 2022, Christy appeared on The Ingraham Angle to falsely claim that extreme heat and other disasters are not “increasing in intensity or frequency.” He also repeated the common climate denial argument that “deaths from weather disasters and so on has gone down about 95% in the last hundred years.” But Reuters points out that the decrease in deaths since 1920 is largely due to “better forecasting and preparedness,” even while “the number, intensity, and cost of climatic and meteorological hazards have all increased over the last hundred years.”

Steven Koonin 

Physicist Steve Koonin, a former scientist for the oil and gas giant BP who wrote a book chock-full of errors about climate change, appeared on the August 10, 2021, edition of Fox Business’ Kudlow to downplay the release of the U.N. Intergovernmental Panel on Climate Change’s sixth climate assessment. Koonin stated that “it is kind of absurd to think that another one degree over a century is going to create catastrophe.” But this would put the planet at over 2 degrees Celsius of warming, which climate scientists have long urged policymakers to prevent because it will be catastrophic for large parts of the globe. 

Koonin also appeared on the August 10, 2021, edition of Special Report with Bret Baier to dismiss the connection between extreme weather and climate change, claiming that natural disasters were “on the face of it, weather. If they were climate, we would see trends over several decades in those phenomena, and we don’t.”

In fact, climate scientists have been able to estimate how much climate change affects any given extreme weather event for years. Notably, researchers found that the heat wave that sent temperatures in the Pacific Northwest into triple digits just two months before the release of the 2021 report would have been “virtually impossible” without global warming. 

Roy Spencer

Roy Spencer is a research scientist at the University of Alabama in Huntsville, an adviser to the Heartland Institute, and a former visiting fellow at the Heritage Foundation who was known as Rush Limbaugh’s “official climatologist.” Politico reported that even while he has written that “climate change is big business” driven by a “marching army of climate scientists whose careers now depend on a steady stream of funding from governments” (a frequent claim among climate deniers), Spencer himself “has worked with organizations that have received funding from an interlinked network of fossil fuel companies — a multitrillion-dollar global industry — as well as wealthy foundations with billions of dollars in holdings that support groups opposing climate and energy regulations.” 

After Hurricane Irma devastated parts of the U.S. in 2017, Fox & Friends hosted Spencer to undermine the science linking more intense storms to a warming planet. Spencer claimed: “As you go through time, there has been no increase in the number of major land-falling hurricanes in Florida, and there’s been no increase in their intensity.” While climate scientists predict that “storm frequency will either decrease or remain unchanged” due to climate change and studies consistently show “no discernible trend in the global number of tropical cyclones,” data has confirmed that warmer temperatures have increased their intensity — including stronger wind speeds and greater precipitation.