On February 9, 1990, Carl Sagan gave this speech before the 5th Emerging Issues Forum at NCSU, expounding on climate observations and energy strategies for a sustainable future, emphasizing solar [full speech:

Sagan was a great man but he was also a dreamer. No negativity here.

Excellent analysis and logic.

Climate change is man made. It is a made made hoax

He was vehemently anti-war too; maybe we need to listen to that first or we may not get the chance to put our solar panels up.

thanks!

Again @twitter in the s..tter with unplayable videos. The first 10 seconds are great, where is the rest?

Nobody gives a damn about this fart in the wind that is solar, we need real energy that can actually sustain an industrial nation. Nuclear power is right there, more efficient and safe than ever before, but instead we choose to buy dirty coal from neighbours and virtue signal.

Amazing speech. We need Carl for every generation

Great share. Thank you.