[decimon]

Climatus interruptus ping.

What’s it all about, algae? Just when I was getting into that algae extinction thing.

[Yo-Yo]

Then, 450 million years ago, the eruptions stopped. But the Appalachians continued weathering, and atmospheric carbon levels plummeted. The Earth swung from a hothouse to an icehouse.

See? If we stop driving our SUVs, we'll trigger another ice age.

[wolfcreek]

I'd normally say *DUH?* but, many folks poopoo the idea that volcanoes and other Earthly emissions play a major role in Earth's past, present and future.

If they had a better knowledge of these effects, the misconception of man-made global warming would be farther from their minds.

[Constitutions Grandchild]

I worked with a geologist for 20 years who said 15 years ago that all the man-made carbon producing activity from prior to through all recorded history couldn't match what comes out of one volcano. He called it a bogus line of scare tactics years ago, and I've always trusted his judgment. He is an extremely educated individual and possesses all the right judgment I could hope for in all areas of his life, i.e. he's not a nut.

[calex59]

This is just so much BS. They are still trying to claim CO2 causes global warming and throwing in the cooling bit in order to explain what is happening now. The reason Volcanic eruptions causes cooling is because a large layer of debris is floating in the atmosphere(Krakatoa springs to mind). This is with huge eruptions of course. I doubt if they caused an ice age, the sun and the earth's rotation caused it.

Science in this country is dead.

[vpintheak]

Impossible! Apart from the timeline, it was humans from the future going back in time. They revved the engines of their SUV’s, first causing global warming, and then global cooling! Don’t these people know anything! Volcanoes! HA!

[NorCoGOP]

C'mon...we all KNOW it was Gore Magnon man that caused globull warming back then...

The debate is over.

There. I win.

See? That's how the Goracle plays it....

[Cletus.D.Yokel]

Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere.

Another Kool-Aid drinker...

[jnsun]

What matters here is that there are mechanisms which are NOT in any contemporary Global Climate Model, ones which have profound consequences on Earth's climate.

The Global Climate Models are totally bogus until they can accurately repeat from a given set of initial conditions the last five hundred million years of Earth's history. There are prodigious negative pathways which are simply not incorporated. The Science is NOT in. And until it is, the Global Climate Models are classic Garbage In Garbage Out.

You have heard this from the Suntrade Institute, not from Barack Obama, not from Harvard University, not from the Brookings Instituion, and not from the CFR.

- the dumber you are the more they will manipulate you.

Johnny Suntrade

[colorado tanker]

What a bunch of crap. Mean CO2 was 4200, 15 times preindustrial CO2. If carbon drives the system, the Ordovician should have had a super-tropical climate.

I don't suppose it occurred to these geniuses that Gondwana drifting over the South Pole might have a little something to do with the glaciation???

I will give them one point. When it got cold in the latter Ordovician CO2 levels fell. Like they always do when it gets cold. But once again they are suckers for the correlation equals causation fallacy.

[Swiss]

I suspect any climate change lasting more than a decade was caused more by the Sun than events on Earth.

There is only one sure way of knowing. Send all the global warming experts to the surface of the Sun to check CO2 levels, collect rocks and explore volcanic activity there. I say a mission this critical for our future would need the best Nobel Price winners leading it. Obama, Gore, and Carter.

[aruanan]

Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere.

Virtually all the warming due to CO2 comes from the first 100-120ppm. Below 200 ppm there is no plant growth. Three, four, five times the amount of CO2 we have currently would have a relatively small effect on atmospheric temperature.

[wendy1946]

COLUMBUS, Ohio -- Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.

---

Bob Bass once redid Lord Kelvin's heat equations for the Earth using a maximal possible figure for radioactive elements and came up with a number in the range of about 200M years. The would be the oldest our planet could possibly be. Other than that, large-scale volcanism was an effect of ancient catastrophes, and not a cause of them.

[DJtex]

Atmospheric CO2 was 20 times higher than today and life was flourishing. That is something measurable and is the real news.

The other news is that cooling kills.