FREQUENTLY ASKED QUESTIONS
The amount of carbon dioxide in the atmosphere is measured at Mauna Loa, Hawaii, by the National Oceanic and Atmospheric Administration. Could the rising carbon dioxide be caused by the volcano?
The amount of carbon dioxide (CO2) in the atmosphere is measured by many different methods, all around the world. By using more than one approach, scientists can be sure they’re measuring a global trend, rather than a local variation.
Full article in Ask NASA Climate.
Ask NASA Climate: How Do We Know Mauna Loa Carbon Dioxide Measurements Don’t Include Volcanic Gases?
NASA Earth Observatory: How do scientists know that Mauna Loa’s volcanic emissions don’t affect the carbon dioxide data collected there?