The Pentagon has made it clear that its "Buy American" policy will be in effect for solar panels — which means Chinese-made solar panels are no longer acceptable for US military installation in the US and abroad.
The nuclear accident at the Fukushima Daiichi power plant is considered the second worst nuclear disaster in history. Science journalist, Geoff Brumfiel has been writing about the Fukushima disaster for Nature magazine. He spoke with Marco Werman.
The World's Rhitu Chatterjee reports on some of the obstacles to India's ambitious plans for nuclear power. There are concerns within India about liability in the case of accidents and land takings to build the plants.
Japan's prime minister has unveiled a plan to restart the country's nuclear energy program almost three years after the Fukushima disaster. But given the country's deep divide over nuclear power, the plan is short of specifics and retains a commitment to developing renewable energy sources.
Ethanol has largely fizzled here in the US. But in Brazil, people have been driving their cars for years powered only by sugarcane ethanol. In recent years though, ethanol in Brazil has hit a speed bump.
The disaster at Japan's Fukushima nuclear complex has led India to rethink its increasing reliance on nuclear power. New York Times correspondent Vikas Bajaj tells anchor Marco Werman the demands for power in India are huge and growing.