… on the intersection of climate change and COVID-19. This intersection is starkly illustrated in Chelsea, which has the highest rate of coronavirus … there's far more exposure to greenhouse gas emissions,” Dr. Nicholas says. “There is clear evidence that exposure to poor air quality is associated with poor outcomes … pandemic and the consequent decrease in greenhouse gas emissions – which plunged 26% globally in April compared to 2019 – illustrate “the intersectionality of …