---
- access_dt: 2013-07-31T00:00:00
  attributes: Carbon Dioxide Concentration (ppmv)
  cite_metadata: 'Earth Policy Institute: Data Center - Climate, Energy, and Transportation (http://www.earth-policy.org/data_center/C23)'
  data_qualifier: ~
  description: "Atmospheric carbon dioxide concentration for the years 1000-2012.\t\t\t\t\t\r\n\r\nSource: Compiled by Earth Policy Institute, with long term historical data from Worldwatch Institute, based on Thomas A. Boden et al., Trends '93: A Compendium of Data on Global Change (Oak Ridge, TN: Oak Ridge National Laboratory, September 1994), and J.T. Houghton et al., eds., Climate Change 1995: The Science of Climate Change, Contribution of Working Group I to the Second Assessment Report of the Intergovernmental Panel on Climate Change (New York: Cambridge University Press, 1996); 1959 to 2012 from National Oceanic and Atmospheric Administration Earth System Research Laboratory, \"Mauna Loa CO2 Annual Mean Data,\" at www.esrl.noaa.gov/gmd/ccgg/trends/co2_data_mlo.html, updated 5 June 2013."
  description_attribution: ~
  display_name: 'Earth Policy Institute Atmospheric Carbon Dioxide Concentration, 1000-2012'
  doi: ~
  end_time: ~
  identifier: nca3-epi-co2-r201307
  lat_max: ~
  lat_min: ~
  lon_max: ~
  lon_min: ~
  name: 'Earth Policy Institute Atmospheric Carbon Dioxide Concentration, 1000-2012'
  native_id: Unknown
  processing_level: ~
  publication_year: 2013
  release_dt: ~
  scale: ~
  scope: ~
  spatial_extent: 'maximum_latitude: 90.00; minimum_latitude: -90.00; maximum_longitude: 180.00; minimum_longitude: -180.00;'
  spatial_ref_sys: ~
  spatial_res: ~
  start_time: ~
  temporal_extent: 1000-01-01T00:00:00 2012-12-31T23:59:59
  temporal_resolution: ~
  type: dataset
  uri: /dataset/nca3-epi-co2-r201307
  url: http://www.earth-policy.org/data_center/C23/
  variables: ~
  version: Unknown
  vertical_extent: ~