[Ernest_at_the_Beach]

Some real research going on...money well spent!

[rbg81]

I have read and seend documentaries in a number of places that say the Earth was nearly all covered with ice 300M years ago. Pretty scarey stuff—hopefully it will never happen again while the human race is around.

[central_va]

"The Paleozoic period was very nice"

[fish hawk]

Common sense tells me that if there is proof that tropical zones now lay beneath the North and South Poles, it would only make sense that there were arctic conditions in the equator zone. Either the surface of the earth shifted or the tilt of 23 degrees was different millions of years ago.

[EGPWS]

[Nateman]

You had life on land 400 million years ago. Would this not have wiped it out? (You only see life in Antarctica at the edges!)

[americanophile]

Sorry all the science on global climate change is settled.

[frankenMonkey]

The History of the Earth, as represented by a roll of toilet paper here.

[sit-rep]

...why cant some women just be content cooking another chicken pot pie for their hubby and wait patiently for his subtle gesture to “climb aboard”...

[SunkenCiv]

similar topics:

• 'Snowball Earth': Glaciers, ice packs once met at Equator
• Ice Once Covered the Equator
• Cold And Ice, Not Heat, Episodically Gripped Tropical Regions 300 Million Years Ago

sidebars:

• New Study Says Global Warming May Be Signal of Impending Ice Age
• The big picture: 65 million years of temperature swings
• Were short warm periods typical for transitions between interglacial and glacial epochs?
• Lessons From an Interglacial Past
• How Well Do Scientists Understand How Changes in Earth's Orbit Affect Natural Climate Trends?

Thanks Ernest_at_the_Beach.

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[Clive]

Quaere:

Exactly where was the equator 300 million years ago?