Before revision:  Using a coordinated set of high-resolution sectoral assessment tools, we report a decrease of 4.2\% in global CO_2 emission in first quarter of 2020. Our emission estimatesreflect near real time inventories of emissions }  from power generation , transportation, industry, international aviation and maritime sectors in 34 countries that account for >70\% of world energy-related CO2 emissions in recent years.
After revision:  Using a coordinated set of high-resolution sectoral assessment tools, we report a decrease of 4.2\% in global CO_2 emission in first quarter of 2020 was of 5.8\% (542 Mt CO2 with a 20\% 1- } from power generation , transportation, industry, international aviation and maritime sectors in 34 countries that account for >70\% of world energy-related CO2 emissions in recent years.