If you’re a pessimist, it’s easy to read the news and come to one conclusion: It’s too late to do anything about climate change. You might as well get your survivalist bag packed and head for the hills.

But the idea that it’s too late to address the problem is a myth, says Texas Tech climate scientist Katharine Hayhoe in the newest addition to her “Global Weirding” series. It’s not just a myth, she adds: It’s a dangerous one.

Watch the video to learn why she believes it’s not too late to act – and what she says citizens must do before the window of opportunity really does close.

Hayhoe’s “Global Weirding” series is produced by KTTZ Texas Tech Public Media and distributed by PBS Digital Studios. New episodes air on YouTube every other Wednesday.

With permission from Texas Tech University climate scientist Katharine Hayhoe and her colleagues, Yale Climate Connections is reposting each episode.