By the end of 2018, NOAA’s atmospheric observatory at Mauna Loa recorded the fourth-highest annual growth in the concentration of atmospheric carbon dioxide (CO2) in 60 years of record-keeping.
![Mauna Loa Observatory is a premier atmospheric research facility that has been continuously monitoring and collecting data related to atmospheric change since the 1950's. (Image credit: NOAA) Mauna Loa Observatory is a premier atmospheric research facility that has been continuously monitoring and collecting data related to atmospheric change since the 1950's.](/sites/default/files/styles/landscape_width_1275/public/legacy/image/2019/Jun/Photo-NOAA%20Mauna%20Loa%20Observatory-cropped.jpg?itok=M-UsxwR6)
Mauna Loa Observatory is a premier atmospheric research facility that has been continuously monitoring and collecting data related to atmospheric change since the 1950's. (Image credit: NOAA)