The eruption of Mauna Loa volcano on Hawaii’s Big Island on Nov. 27, 2022 temporarily interrupted important scientific observations at the Global Monitoring Laboratory’s atmospheric […]
Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked at 424 parts per million in May, continuing a steady climb further into
In May, NOAA's measurements at the Mauna Loa observatory averaged 419.13 parts per million. Scientists at Scripps calculated a monthly average of 418.92 ppm. It's the highest level since accurate measurements began 63 years ago.
Atmospheric carbon dioxide measured at Mauna Loa Observatory reached a seasonal peak of 417.1 parts per million for 2020 in May, the highest monthly reading ever recorded. Monthly CO2 values at Mauna Loa first breached the 400 ppm threshold in 2014, and are now at levels not experienced by the atmosphere in several million years.
Peak carbon dioxide levels surpass 410 parts per million for April and May Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory averaged