After the Fukushima I nuclear accidents , environmental activists at a U.N. meeting in April 2011 `` urged bolder steps to tap renewable energy so the world does n't have to choose between the dangers of nuclear power and the ravages of climate change '' . Citing the Fukushima I nuclear accidents , environmental activists at a U.N. meeting in April 2011 `` urged bolder steps to tap renewable energy so the world does n't have to choose between the dangers of nuclear power and the ravages of climate change '' .