Fifteen percent of energy in Hawaii comes from renewable sources such as wind, solar and biomass. The rest comes mostly from pricey oil imports. The state now wants to switch from oil to natural gas as an interim fuel. But some worry the move could derail the state's green energy momentum.
The Japanese government announced Tuesday that it intends to build an underground wall of ice around the Fukushima Daiichi nuclear plant. The wall could stop radioactive water from leaking out of the plant, if it can work.
The owner of Vermont's only nuclear plant says it will shut down the facility next year. Entergy had just won a lengthy battle with the state over whether the plant could keep operating. Now the company says market forces and other issues mean the Vermont Yankee nuclear plant isn't profitable.
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