the measurements of the amount of co2 made at the mauna loa observatory are accurate and uncontaminated by any emissions from the volcano.
the measurements of the amount of co2 made at the mauna loa observatory are accurate and uncontaminated by any emissions from the volcano.
mauna loa observatory:3
mauna loa observatory
according to the noaa, mauna loa is the world's oldest continuous co2 monitoring station, and the world's primary benchmark site for measurement of the gas.