Here is another solution that aims to take CO2 out of coal plants.
The exhaust from a coal plant passes through stainless steel rings where it mixes with specially treated water. CO2 gets absorbed and converted into Calcium Carbonate. Heat generated from this reaction is routed back into the plant. Calcium Carbonate has several useful applications.
Tom Kiser, the brains behind it has big plans for his latest invention. He calls it the liquid chimney.
via: CNN Money || via: SeventhGeneration.com
|| via: TreeHugger.com
This technology along with algae based technology I mentioned before could be used to cut down CO2 emissions immediately and arrest climate change. In the long run, we need to retire coal in favor of renewable energy. The environmental footprint of coal mining and burning is just too much and too ugly.