Did you all know that up until around 5000 years ago, the area known as the Sahara Desert was mostly lush, fertile land? Damn that AGW.
Not a big deal either way. IF the equator regions become too hot northern regions become productive land instead of frozen wastes and we don't have to have visas to winter in the sun.
Not really.
Once all that muskeg really starts to thaw, the amount of methane released over time will make global warming from CO2 seem like a cool, autumn evening.
CO2 isn't the ultimate problem anyway. You can add a surprising amount of CO2 to the atmosphere without a whole lot of adverse effects,
except once it's warm enough for the muskeg to start to thaw in earnest. It's the release of massive amounts of methane that will be the real killer.
Here's the other thing. I'm not sure if we really know how fast a naturally occurring warming event can happen. Going in the opposite direction there's a natural process called a Heinrich(sp?) event. What happens during a Heinrich event is over the span of a decade global temperatures can drop 5C.
While there's no question that we can affect the climate to some degree, the degree is still in question. Using our current global production of GHGs as the variable, if the world was in a cooling phase our emissions would probably slow the process down to some degree or another. Same if we were in a warming phase, we'd probably speed it up to some degree or another. Again, how much is still up for debate and might never be answered. But there is an answer and it is reality in its most unpleasant form. No matter
what cycle we are in, there is sweet FA we can do to prevent it. We can probably mitigate it, at least for while anyway, but if anyone thinks we can prevent it they're absolutely balmy.