If you haven’t watched this before, you should. The brilliant Carl Sagan testifying before the United States Congress in 1985 on #ClimateChange.

We should have listened then. Will we now?

Climate change isn’t an on & off switch. It’s an exponential dial. https://youtu.be/Wp-WiNXH6hI?si=pWQ4VgYpSkA9NQx5