Sagan rebuked is idea of runaway greenhouse effect

[darkbeaver]

 

[Danbones]

I bought worlds in collision when I was twelve or so, in a used book store
and its been twilight zone time ever since

 

[darkbeaver]

I found it in a box of books a British hippy gave me when he moved south.

 

[Ludlow]

I found it in a box of books a British hippy gave me when he moved south.

Billions and billions of shyt like this that people have. Biliions and billions,,,,,,,,

 

[Danbones]

"New evidence supports the idea that a huge space rock collided with our planet about 13,000 years ago and broke up in Earth's atmosphere, a new study suggests.

This impact would have been powerful enough to melt the ground, and could have killed off many large mammals and humans. It may even have set off a period of unusual cold called the Younger Dryas that began at that time, researchers say.
http://www.space.com/14793-comet-earth-impact-younger-dryas.html"

oh yee of little faith...
ooops I mean KNOWLEDGE

"Scientists find link between comet and asteroid showers & mass extinctions
https://grahamhancock.com/scientists-find-link-between-comet-and-asteroid-showers-mass-extinctions/
https://www.ras.org.uk/news-and-pre...n-comet-and-asteroid-showers-mass-extinctions

OH look... its the royal astronomical society...