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Strategies & Market Trends : Mish's Global Economic Trend Analysis -- Ignore unavailable to you. Want to Upgrade?


To: Sea Otter who wrote (69453)9/25/2007 1:26:07 PM
From: Mike McFarland  Read Replies (1) | Respond to of 116555
 
Although atmospheric methane more than doubled over the past
1000 years--it has not increased much very recently, topped out?
windows.ucar.edu

You see a lot about tipping points and positive feedbacks,
but it might also be true that as new forest grows and
especially as soil microorganism productivity increases
across Canada and Russia that a strong negative feedback
emerges--damping out further methane increase.

Methane deposits released from the sea bed could vastly
overwhelm any uptake on land however--but it seems unlikely
that ocean temperatures could warm nearly enough to do that
in our lifetime, and even our children's lifetime. Just a
quick bit of surfing and I see that a temperature increase that
would cause an oceanic methane burp might be something on the
order of 5C. That warming is likely for the arctic atmosphere,
but ocean bottom temperatures (I would guess) would have a
huge lagtime. That is my 60 second take on it anyway.

There seem to be experts on this blog here, might be worth bookmarking:
blogs.nature.com