Libertarians prefer to deny the scientific consensus and deny that climate change is a problem. Despite the facts such as recent years being the hottest ever recorded in modern history and demonstrable increase in severity of extreme weather events. The reason Libertarians prefer to deny is two fold imo- 1- they are closely aligned with and influenced by vested interests like the Koch brothers and other environmental vandals in the oil industry who have long sought to sow disinformation/FUD and thereby stall any meaningful action on climate change. 2- they are horrified at the implications of accepting climate change is a real crisis as the obvious solution IF you accept the crisis is collective government led action. For Libertarians who believe 'the market' will fix all problems this is too much to swallow and so they continue to deny the science and present themselves as a fringe lunatic death cult.