The US and European Union should step up production of affordable electric vehicles to justify their tariffs on Chinese EVs, Beijing’s top envoy in South Africa said, speaking ahead of a major China-Africa summit where green energy is expected to be high on the agenda. Chinese ambassador Wu Peng said at a climate change event in Pretoria on Thursday that China – a leader in EV technology, solar energy and other new energy products – had played a big role in cutting harmful carbon emissions...