BMW dumps coal for cow pies in pledge for 100% renewable power

BMW's plan to switch exclusively to green electricity finds it tapping some unusual power sources -- including a South African biomass plant that runs on cow dung and chicken droppings.

VW diesel penalties help to build emissions lab in California

The California Air Resources Board is building a vehicle emissions test lab, with a third of the money coming from penalties that VW is paying because of its diesel-cheating scandal.

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