---
- attributes: ~
  caption: 'The sawtooth pattern demonstrates the fluctuation of atmospheric concentration of carbon dioxide over seasonal cycles, driven largely by the terrestrial biosphere. There is an overall upward trend since data collection began. Global monthly average concentrations of carbon dioxide have risen steadily from 339 parts per million in 1980 (averaged over the year) to 412 parts per million in 2020, an increase of more than 20% in 40 years.'
  chapter_identifier: ~
  create_dt: 2018-01-26T19:31:33
  href: https://data.globalchange.gov/report/indicator-atmospheric-carbon-dioxide-2021/figure/indicator-atmospheric-carbon-dioxide-2021.yaml
  identifier: indicator-atmospheric-carbon-dioxide-2021
  lat_max: 90
  lat_min: -90
  lon_max: 180
  lon_min: -180
  ordinal: 1
  report_identifier: indicator-atmospheric-carbon-dioxide-2021
  source_citation: ~
  submission_dt: 2021-08-13T19:22:52
  time_end: 2020-12-31T00:00:00
  time_start: 1980-01-01T00:00:00
  title: Atmospheric Carbon Dioxide
  uri: /report/indicator-atmospheric-carbon-dioxide-2021/figure/indicator-atmospheric-carbon-dioxide-2021
  url: ~
  usage_limits: Figure may be copyright protected and permission may be required. Contact original figure source for information