[wvdlaan]

During the past years I found two answers to this question that seem plausible to me.

First, there are many myths about climate change that are believe by many [1].

Second, George Marshall investigated why 'we' don't take measures and wrote a book about it [2]. He found the problem is hard wired in our brains and caused by "our evolutionary origins, our perceptions of threats, our cognitive blind spots, our love of storytelling, our fear of death, and our deepest instincts to defend our family and tribe".

[1] https://skepticalscience.com/argument.php

[2] George Marshall - Don't Even Think About It: Why Our Brains Are Wired to Ignore Climate Change