Reuters: Nuclear energy is undergoing a worldwide renaissance, but poor nations yearning to develop need to realize that it is no panacea to profound poverty, the head of the UN nuclear watchdog said on Monday. After the 1986 Chernobyl disaster in the former Soviet republic of Ukraine, many governments questioned the value of nuclear power. Some European countries, like Austria and Germany, decided to wean themselves off nuclear energy. But issues like global warming and the …