Skip to main content

Search from vocabulary

Content language

Concept information

Preferred term

carbon dioxide  


  • [Henderson's] CO2, a gas present in the atmosphere at a concentration of about 362 ppm. The main sources of atmospheric carbon dioxide are biological respiration, of which it is a waste product, combus­tion, and outgassing from the oceans. Carbon dioxide is removed from the atmo­sphere by photosynthesis and by solution in sea-water. Human activity has enhanced the atmospheric concentration of carbon dioxide by the burning of fossil fuels and biomass. It is a major greenhouse gas, trap­ping heat in the lower atmosphere.

Broader concept

Entry terms

  • CO2

Scope note

  • US LTER controlled vocabulary



In other languages


Download this concept:

RDF/XML TURTLE JSON-LD Created 3/31/16, last modified 12/18/18