How to cool the planet

This thought was posted on Thinkaloo on 23 October 2007 by member james85

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What if we could create some kind of artificial partial solar eclipse?

This will reduce the amount of solar energy that gets to the earth.

I think I had read somewhere that some people had come up with the idea of creating large space-blankets that will orbit the earth and reflect sunlight back to the sun.

Whatever needs to be built, the main idea is this. Since we can't seem to have a way to remove green house gases from the atmosphere, we can at least try to reduce the amount of solar energy that gets to the Earth!

Any other ideas how to do so?

How to remove CO2 from the atmosphere

This thought was posted on Thinkaloo on 18 February 2008 by member ben

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Carbon dioxide is a greenhouse gas that exists in the earth's atmosphere. CO2 however becomes solid at temperatures below -78 °C. In its solid state, carbon dioxide is commonly called dry ice. I thought the following. If scientists can find a way to cool atmosphere at that level then large chunks of it can be removed from the atmosphere. CO2 at a solid state will just fall from the sky like dry ice due to gravity!