The phrase "climate denialists" refers to people who don't believe or reject the scientific consensus on climate change, denying that it is caused by human activities or that it's a serious problem. Full definition
... group of climate denialist zombies have just finished reanimating long dead climate arguments. (realclimate.org)
The so - called hiatus in global warming between 1999 and 2014 was a phenomenon much hailed by climate denialists as evidence that global warming did not exist, or had stopped. (climatenewsnetwork.net)
He often sources stories from climate denialist blogs and promotes the work of climate science deniers. (desmogblog.com)