A gas found in the earth’s atmosphere that traps heat radiated from the surface of the earth, and causes the earth’s temperature to rise. The term comes from the fact that these gases act a little like a greenhouse to limit the loss of heat from a system. The gases do not block high-energy radiation from the sun but they trap lower-energy radiation which would otherwise radiate from the Earth into space.

Many of the gases that occur in the Earth’s atmosphere are greenhouse gases. They include carbon dioxide, methane and water vapour. They occur both naturally and due to human activities. If no greenhouses gases were present, the Earth surface would be about 33°C (91°F) cooler than it is. See also Climate change and Global warming.

  • > Pallas-Sodankylä Stations

    Field Sites

    STATION NAME AND OWNER The Pallas-Sodankylä station consists of clean air research station in Pallas and ArcticDefinitions of the Arctic vary according to environmental, geographical,

    > Read more
  • > Mukhrino Field Station

    Field Sites

    STATION NAME AND OWNER Mukhrino Field Station (https://mukhrinostation.com) was established as a part of the UNESCO chair Environmental dynamics and global climate change (EDCC) of Yugra State

    > Read more
  • > Stories of Arctic Science

    Publications

    This book contains stories of cutting-edge ArcticDefinitions of the Arctic vary according to environmental, geographical, political, cultural and scientific perspectives. Some scientists define the Arctic

    > Read more
  • > Tune in to the INTERACT Arctic Research Blogs

    News

    When things slow down during the summer holiday season, in arcticDefinitions of the Arctic vary according to environmental, geographical, political, cultural and scientific perspectives. Some

    > Read more
  • > TA Ambassadors

    INTERACT TA Ambassadors are scientists who have conducted research at INTERACT stations with the support from Transnational Access. TA Ambassadors share knowledge –based on their

    > Read more
  • > Methane

    Glossary

    A colourless, odourless gas (chemical formula CH4). Some microbesproduce methaneA colourless, odourless gas (chemical formula CH4). Some microbesproduce methane. It can also be found in underground deposits.

    > Read more
  • > Carbon cycle

    Glossary

    Describes how carbon moves around the environment. It is an example of a biogeochemical cycleBiogeochemical cycles are pathways that chemicals take as they move between living

    > Read more
  • > Carbon dioxide

    Glossary

    A gas (chemical formula CO2), which occurs naturally in the Earth’s atmosphere. Carbon dioxideA gas (chemical formula CO2), which occurs naturally in the Earth’s atmosphere.

    > Read more
  • > Climate feedback mechanism

    Glossary

    A change in the climateThe average weather we would expect over a long period of time (seasons, years, decades). Climate varies from place-to-place across the

    > Read more
EU Logo