Before revision: Recent studies conclude that the global coronavirus (COVID-19) pandemic decreased power sector CO_2 emissions worldwide. We analyze the statistical significance of CO_2 emissions reductions in the U.S  power sector from March through July 2020 and we present model-informed expectations of the likelihood of sustained reductions in CO_2 emissions.
After revision: Recent studies conclude that the global coronavirus (COVID-19) pandemic decreased power sector CO_2 emissions globally and in the United States. In this paper, we analyze the statistical significance of CO_2 emissions reductions in the U.S power sector from March through July 2020 and we present model-informed expectations of the likelihood of sustained reductions in CO_2 emissions.