Reuters A booth of China National Nuclear Corp. is pictured at an exhibition in Beijing, China.China is set to more than triple its nuclear energy capacity over the next 20 years, overtaking the U.S. to become the world’s largest nuclear-power producer, according to the International Energy Agency. Speaking at the International Petroleum Week conference in London on Wednesday, IEA Executive Director Fatih Birol expressed concerns that the U.S. and Europe aren’t investing enough in nuclear power, while China is charging ahead. “China is coming back strong. Today there are about 60 nuclear power plants under construction and more than one third of them are in China. China is growing and as a result of that we’ll soon see China overtaking the United States as the number 1 nuclear power in the world,” he said. He noted that the U.S. has been the global leader in nuclear power since the 1960s, but said that two trends are threatening to knock the country out of the top spot: Very few additions to nuclear capacity and no lifetime extensions for the existing power plants. The same goes for Europe, he said, where major nuclear player France has seen output decline sharply in recent years.via