Record levels of CO2 observed at Mauna Loa Observatory

NOAA's measurements at the mountaintop observatory on Hawaii’s Big Island were 1.8ppm higher than 2021

450ppm CO2

Observed record

in May 2022,

421ppm CO2

400

Monthly

average

350

300

1960

80

2000

20

450ppm CO2

Observed record

in May 2022,

421ppm CO2

400

Monthly

average

350

300

1960

70

80

90

2000

10

20

450ppm CO2

Observed record

in May 2022,

421ppm CO2

400

Monthly

average

350

300

1960

70

80

90

2000

10

20

450ppm CO2

Observed record

in May 2022,

421ppm CO2

400

Monthly

average

350

300

1960

70

80

90

2000

10

20

450ppm CO2

Observed record

in May 2022,

421ppm CO2

400

Monthly

average

350

300

1960

70

80

90

2000

10

20

Guardian graphic. Source: Dr. Pieter Tans, NOAA/GML and Dr. Ralph Keeling, Scripps Institution of Oceanography