[colorado tanker]

My understanding is that modern reconstructions of the Archean show a dramatically different atmosphere from the present, one depleted in oxygen. A billion years of work by stromatolites changed all that and injected the oxygen needed for modern life.

http://www.ucmp.berkeley.edu/precambrian/archaean.html

[Fred Nerks]

And when Lovelock wrote ...the presence of fossils shows that the Earth’s climate has changed very little...

all he did was prove what an idiot he was.