EnvironmentOld EV batteries could meet most of China's energy storage needs Electric vehicle batteries are typically retired once they reach about 80 per cent of their original capacity, but they could be repurposed in electricity grids to balance out slumps in renewable generation 51¶¯Âþ
PhysicsThe US is unlikely to test nuclear weapons, despite what Trump says President Donald Trump appears to have ordered a return to nuclear testing after decades of uneasy but effective treaties banning the practice – but will it actually happen? Analysis