Gallery: 5 Crazy Ways To Stop Climate Change With Geoengineering


5. Give the Earth a Solar Shield

This list wouldn't be complete without one crazy idea that takes place in space. Theorized by Professor Roger Angel, the plan would see the construction of a massive 100,000 square mile 'solar shield' made from trillions of lenses. This would help to deflect the sun's rays (by 2%) and keep the Earth cooler.

What's the catch? Well, seeing that it takes years to plan a shuttle mission, this project is practically impossible. Oh, and it would cost $350 trillion - 12 times the global national income.

It looks like our fate is in the hands of the politicians for now.

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  1. eboireau January 9, 2012 at 11:56 am

    It is likely that a change in communication between the mediterranean and Atlantic can cause a change in Atlantic climate, but I doubt this could affect significantly and more positively the Canada climate (?freezing) than other areas (and negatively). What’s about effects on the local climate and environmental? Nobody can predict enough accurately the small and large scale effects of such a risky project, and nobody in current and future generations will like to pay for (bad)consequencies.

    Then, lowering the mediterranean level by 200m thanks to evaporation only would take several years with lower energy production at a time the demand of energy is high… Then the dam will be ageing or obsolete…

    Finally, closing mediterrannean and using it to evaporate the atlantic water fed for energy production, would make it a sink for salt. Why creating new inlands if they are dead (or costly to desalt)?

  2. eriksalkeld January 4, 2012 at 6:17 pm

    In a similar way, a peruvian NGO is already painting the peruvian Andes glaciers with a special ecological paint based in white lime:

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