Geert de Vries, physicist: Since 2010 I said that nuclear power should not sail under the false green flag that advertises its nil-CO2 output. That is because CO2 does not do what it is accused of, and one day people will find out. Then nuclear will lose the traction that came with the nil-CO2. And nuclear will once again be saddled with the old bugbears nuclear waste, radiation danger and proliferation. Until recently I expected that day to be another decade or more in the future.