{"thcode":2,"term":{"code":1704,"name":"greenhouse effect","parent":63,"scope":"Local, regional, or global warming in the atmosphere due to the higher heat capacity of certain gases such as carbon dioxide, methane, and ozone."},"uf":[],"bt":[{"code":63,"name":"atmospheric and climatic processes","parent":101,"scope":"Phenomena affecting or occurring within the mass of gases that surrounds the earth, including its physics, chemistry, dynamics, and weather conditions."},{"code":101,"name":"biological and physical processes","parent":1174,"scope":"All continuing activities, functions, and phenomena associated with organisms and non-living matter."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":506,"name":"greenhouse gases","parent":65,"scope":"Atmospheric gases, including carbon dioxide, fluorocarbons, methane, nitrous oxide, sulfur hexafluoride, ozone, and water vapor, that trap radiant (infrared) energy keeping the earth's surface warmer than it would otherwise be."}]}