The Daily Sprout

Wal-Mart Bets on Wind: The mega retailer has signed a deal with Duke Energy to meet 15 percent of its electricity needs at hundreds of Texas stores with wind power, paying rates on par with current electricity prices. — WSJ’s Environmental Capital

Dollar Surge Dings Solar: Unfavorable exchange rates with the euro, among other things, have prompted a raft of solar companies, including Suntech, SunPower, and JA Solar, to reign in forecasts for next year. — Greentech Media

Buried Carbon Breakthrough: Scientists presented the results of a study in Saskatchewan this week showing billions of tons of carbon dioxide buried underground can be safely monitored, addressing a looming question mark for carbon sequestration projects. — MIT Technology Review

Dingell Dethroned: Longtime House Energy and Commerce Committee head John Dingell of Michigan, a strong supporter of the Detroit auto industry, has lost his chairmanship to fellow Democrat Henry Waxman of California. — Washington Post