Global CO2 emissions have decreased dramatically as countries around the world have gone into forced movement restrictions, amid fears of the global pandemic. Yet the change is not sustainable, since it has not been underpinned by structural reform. To get some insight into what infrastructure and attitude changes we need to see in order to really make a dent in the climate crisis, we speak to Corinne Le Quéré, Professor of Climate Change Science, at the University of East Anglia.