Study: Oceans help to stem global warming
In this photograph supplied by Volvo Ocean Race, Spanish team Team Telefonica, skippered by Iker Martinez, finish to win leg 1 of the Volvo Ocean Race 2011-12 from Alicante, Spain to Cape Town, South Africa Saturday, Nov 26, 2011 to take the lead in the competition.
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#1 Apr 8, 2013
The title is wrong. Oceans are storing(not stemming) heat, ever more & ever deeper on strong downwellings. When the heat finally is returned to the Earth's surfaces at greater rates than the downwellings can deposit heat, then double & triple reinforced quantities of heat will power AGW to remarkable heights, such that toxic AGW deniers cannot do anything but lose their denier statuses.
The difference between AGW advocates & deniers then will be, the length of time people will be AGW advocates.
#2 Apr 8, 2013
Of course, litesong is RIGHT, the title is wrong.
There's no free AGW/CC.
We pay dearly for our actions and nonactions.
Pity pity the living ...
#4 Apr 9, 2013
The deep ocean waters take 1000-1500 yrs to be mixed with the surface waters. This is so long relative to the rapid CO2 increase that essentially all of the 1/3 of anthropogenic CO2 increase that's been absorbed into the oceans is in the top few hundred meters and the CO2 content of the surface layers is rising measurably. As it does, the increased dissolved CO2 levels act against the increasing atmospheric CO2 partial pressure to reduce the rate at which additional CO2 would otherwise migrate into the seas.
The result is that later in the century, the fraction of additional CO2 that dissolves into the ocean will become much less than 1/3, increasing the rate of warming beyond what the same additional amount of CO2 would give us today.
If you're a long term thinker, the implications are pretty scary. If humans and the feedback loops pour out enough CO2 for long enough, the deep ocean waters will represent a huge store of CO2 that will act in opposition to all attempts to lower atmospheric CO2 concentrations for centuries.
#5 Apr 9, 2013
Agree with you that deep ocean circulation takes a long time. Some regions of the oceans appear to have a circulation quicker than your generalized 1000 years. Some other estimates indicate the short periods are as quick as 500 years & even 100 years.
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