Kurt Mix was convicted for deleting text messages that had information about the worst offshore oil spill in the nation's history. That hindered a grand jury's investigation, prosecutors argued. He had been a drilling engineer with BP.
One former anti-nuke activist says the world can't afford to dismiss nuclear power, if we're to rein in global warming. Nuclear plants provide a more reliable energy supply than wind or solar, he says, and without the high carbon emissions that fossil fuels produce.
California plans to get 33 percent of its electricity from wind and solar power by 2020. But that will only work if the state can economically store some of the energy for release on cloudy, windless days.
Once the Cold War ended, much of Russia's surplus uranium from thousands of decommissioned weapons wound up in crumbling military facilities. In 1993, the U.S. Department of Energy made a deal to have the material converted to fuel for U.S. power plants. The last shipment arrives today.
The U.S. aims to reduce carbon dioxide emissions by 80 percent by 2050. Wind and solar power can help. But folks doing the math say other pricey, controversial technologies — such as burying carbon gas underground, and expanding nuclear power — are also likely to be part of a low-carbon future.
Renewable energy has become a $220 billion a year industry. But to significantly slow climate change, the power of wind, solar and other renewable sources must vastly expand. Some say the tech breakthroughs needed are on the horizon, though a top economist sees a tougher road ahead.
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