David Legates, a meteorologist who claims that excess carbon dioxide in the atmosphere is good for plants and that global warming is harmless, has been tapped to run the federal agency that oversees a major scientific report on how climate change is affecting the United States.

Legates, a controversial figure who joined the National Oceanic and Atmospheric Administration (NOAA) in September, will move to a new slot as head of the U.S. Global Change Research Program as early as Thursday, according to two people familiar with the move who spoke on the condition of anonymity because they were not authorized to discuss it publicly.

Legates could not be reached for comment.