[Imp]

Yes I have read some schemes for controlling thermal currents in the ocean among others, not entirely sure we know what were doing mucking about with how temp is distributed. Going on past form if we meddle with nature normally cause at least as many probs as we fix.

Funny thing I read recently was alternative power sources & hybrid cars saying its not eco friendly.
Turns out Lithiun or Nickel/Nickel Cadmium is a terrible pollutant both mining & smelting. Think one mine is even used by the army to simulate a nuclear battlefield due to the devastation it causes. If you take into account recharging is not efficent power is lost & you are still producing it just at a powerplant instead of localy unless you go nuclear & ignore the waste or wind etc you are probably causing a lot more harm to the enviroment than a standard car.