Republican presidential candidate Ted Cruz is taking advantage of his status as a U.S. Senate subcommittee chairman to convene a hearing next week that appears aimed at casting doubt on the scientific theory that global warming is at least in part man-made.

“Data or Dogma? Promoting Open Inquiry in the Debate over the Magnitude of Human Impact on Earth’s Climate” is the title of the hearing to be held Tuesday by Cruz's Commerce Subcommittee on Space, Science, and Competitiveness.

Like most of his fellow Republican presidential candidates, the Texas senator rejects the view of some 97 percent of climate scientists, as documented by the U.S. National Academy of Sciences, that there is a link between human activity such as burning fossil fuels and climate change. Cruz labeled that figure “bogus” in an early October hearing and characterized attempts to act on climate change as a liberal ploy to justify environmental regulations that he said harm the economy.

The four witnesses scheduled to appear at the hearing are all prominent climate change skeptics. 

They are John Christy, a professor of atmospheric science at the University of Alabama in Huntsville; Judith Curry of the Georgia Institute of Technology; William Harper of Princeton University (where Cruz obtained his undergraduate degree); and Mark Steyn, a conservative writer and political commentator.

The announcement of the hearing by Cruz comes the day after President Barack Obama returned from attending a global summit in Paris on climate change, where he expressed confidence—seconded by a number of experts interviewed by Bloomberg—that neither Republicans in Congress nor those running to replace him will be able to derail his plans to reduce U.S. carbon emissions.

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