Experts worried post Covid investments return to fossil fuels

New research shows that the COVID-19 pandemic has cut fossil fuel emissions by 2.6 billion tonnes in 2020, it's the biggest drop scientists have seen since humans started burning fossil fuels. It's not all good news though. Experts are worried it could all be undone if post-pandemic investments are placed in fossil fuels again instead of greener technologies. Dr Pep Canadell is Chief research scientist at CSIRO and executive director of the global carbon project, he talked to our producer Ellie Jay.