Posts Tagged ‘coal’

Peak Coal?

Wednesday, June 24th, 2009

There has been for some time a notion of Peak Oil — that new finds of oil and new technologies to extract deeper and cheaper have peaked. Now, the Wall Street Journal puts in its front page a major story about worries in the coal industry that, as a graph is titled, there may be “Peak Coal.”

WSJ front-page shocker: “U.S. Foresees a Thinner Cushion of Coal,” warns rosy U.S. coal estimates “may be wildly overconfident”

Mining companies report they have to dig deeper and move more earth to extract coal from aging mines, driving up costs. Utilities have grown skittish about whether suppliers can ship promised coal on time. American Electric Power Co., the nation’s biggest coal buyer, says it has stepped up its due diligence to make sure its suppliers can make deliveries after some firms missed shipments last fall. It even bought a mine to lock down supplies.

“We are very much concerned, and it’s getting worse,” said Tim Light, senior vice president for AEP.

via Climate Progress

invest in solar now….

Critters Crunch Coal, Fart Methane

Wednesday, January 14th, 2009

“Luca Technologies, a startup based in Golden, CO, has raised $76 million to scale up a process that uses coal-digesting microorganisms to convert coal into methane. The process is designed to operate underground, inside coal beds. Methane, the key component of natural gas, can then be pumped out and used to generate electricity or power vehicles.

If the process proves economical, it could help reduce carbon-dioxide emissions, since burning natural gas releases half as much carbon dioxide as does burning coal.”

Coal Eating Microbes

Of course methane is a much more potent greenhouse gas than CO2, though it stays in the atmosphere much less time. We’d like to see the numbers crunched before these critters are given the jack-up juice to make them out compete their methane suppressing cousins.