Germany's energy shift from nuclear to renewables is costly and complicated. The move was inspired by the nuclear disaster in Japan - and it is the Japanese who are inventing some of the solutions.
While diesel cars increasingly look to be on the way out, another big polluter is often ignored: shipping. Will electric vessels, including the first e-barges, help the industry clean up its act?
The world's largest automotive supplier has decided against producing its own battery cells despite calls from EU politicians to do exactly that. Bosch said the investment would probably never pay off.
Researchers and their institutions should set a good low-carbon example to their communities, says Katharine Hayhoe, director of climate science at Texas Tech University.
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