I’m sure the various so-called studies that have already purported to disprove the Clovis impact model — none of them have been worth a crap — came about in part to shore up the global warming hoax; regardless, they’ll get more attention (not necessarily grant money) for themselves and future research and their careers if they link their ‘research’ to something already well known.
I worked with an IT professional who majored in geology in college. He used to tell me stories about field research outings where his professors (plural) would reward students who could find data to support theories about man’s impact on the planet and the decline thereof. It’s mindboggling how this is allowed to pass as science.