NOAA tracks and analyzes the changing climate
by Debra Werner — May 8, 2021 NOAA’s Mauna Loa Observatory in Hawaii. Credit: NOAA Earlier this month, atmospheric carbon dioxide reached a daily average of 421 parts per million, 50% higher than levels measured before the industrial revolution, according to data gathered at Hawaii’s Mauna Loa Observatory. That information…
bubmagMay 8, 2021