Global CO2 measurement hits record high in May despite the lockdown

According to U.S. government data, a key measure of carbon dioxide emissions in the Earth's atmosphere hit a record in May even as a global pandemic brought the world's economies to a virtual standstill. Carbon dioxide recorded at the Mauna Loa Observatory in Hawaii reached 417 parts per million in May, higher than the record of 414.8 ppm set last year. May is the annual peak for the world's carbon dioxide emissions.