As the world marked the 50th anniversary of Earth Day on Wednesday, calls were growing for governments to treat the shock of the coronavirus with “green recovery” packages to spur a shift to a low-carbon future. Although many countries remain on a pandemic emergency footing, some investors, politicians and companies see the longer-term economic response as a chance to address the more profound risks posed by climate change. “There’s a lot of pressure for those fiscal stimulus packages, when they come, to be low-carbon, climate-smart,” Peter Betts, a former lead climate negotiator for Britain and the European Union, told Reuters Television.