[quote=suneel112
It also alters the flow of the seas so the warm seas can't "vent" their heat through warm currents. The only other way to "vent" heat from the oceans is for water to evaporate (ie the first stage of forming a hurricane).
Besides adding heat, it alters natural wind cycles that bring drought to some regions, and flood to others.
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That's why I think OTEC is such a good idea. Basically, it uses the oceans heat to fuel a Stirling-Type engine.
Here's Hawaii's OTEC page
I realize it's a realtively short-term solution, but it's still cool