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Even before a single ounce of natural gas gets burned in a home or power plant, massive amounts of CO2 have already been released. The process of extracting natural gas releases carbon dioxide pent up in the same wells as the gas, thus adding to the climate-changing impact of the fuel.

To help lower the global warming impact of one of the world's largest natural gas fields, General Electric has supplied Chevron, Exxon Mobile and Shell with enough compression "trains"--the pumps and turbines that do the sequestering--to create the world's largest carbon sequestration project. The trains will pump 3.3 million tons of CO2 released from natural gas mining back into the ground every year. That's the equivalent of taking 630,000 cars off the road.

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In a move that might seem oxymoronic on the surface, Chevron has plans to install a solar steam plant which will power one of their oil fields in Central California. The 29-megawatt power source uses 7,000 mirrors spread across 100-acres to focus light on a boiler tank sitting 323-feet high.

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