Last week BloombergNEF (BNEF) published a new report that quantifies the impact of the Covid-19 pandemic on U.S. carbon dioxide emissions . The report estimates that 2020 emissions will be 9.2% lower than in 2019, reaching a level last seen in 1983. At that time, BNEF notes , the economy was 60% smaller than it is today. Although U.S. carbon dioxide emissions have been declining for a dozen years, BNEF estimates that this year’s decline will be the largest on record. Without the impact of Covid-19, the report estimates that emissions would have still fallen by about 1%. Thus, the pandemic alone was responsible for about an 8% decrease in emissions. The report breaks down emissions by sector, and also includes the impacts of this year’s forest fires. On the sector-by-sector impact, BNEF Chief Content Officer Nathaniel Bullard wrote: “Transport, now the biggest contributor to U.S. greenhouse gas emissions, […]