[frog_jerk_2004]

Once you expose a huge amount of underwater sediment to the atmosphere, two very bad things happen — a huge amount of carbon in the sediments is released and also methane. Once (methane) hits the atmosphere it's the most efficient greenhouse gas on the planet," he said.

So the current "Global Warming Trend" advertised by the left will actually cause sea levels to rise thereby reducing the amount of underwater sediment to the atmosphere, reducing greenhouse gasses?

[Strategerist]

These things are pretty complicated.

Really, Really enormous volcanic eruptions (Like the "Siberian Traps" eruption that covered an area the size of Europe with Lava and made every eruption of Yellowstone look like a joke by comparison) both cool the earth and heat it up.

They initially cool the earth with SO2 emissions; so it gets real cold, really fast. Then longer term you get global warming because of greenhouse gas emissions that stay in the atmosphere much longer.