{"id":96,"date":"2021-11-04T14:02:26","date_gmt":"2021-11-04T13:02:26","guid":{"rendered":"https:\/\/www.eovision.at\/esa-schoolatlas\/?page_id=96"},"modified":"2025-03-12T13:54:31","modified_gmt":"2025-03-12T12:54:31","slug":"atmosphere","status":"publish","type":"page","link":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/atmosphere\/","title":{"rendered":"Atmosphere"},"content":{"rendered":"

Atmosphere<\/h2>\n


\nThe gaseous component of the Earth system has a total mass of more than 5000 billion tons. Nevertheless the atmosphere (from Greek atmos<\/em> for vapour) is only a relatively thin layer – all relevant weather phenomena take place in the troposphere, which extends to an altitude of 12 to 15 kilometers only.<\/p>\n

Almost nothing has remained from the primary atmosphere that formed together with the Earth some 4500 million years ago. Erosion<\/a> and, later, life have changed its composition to what we breathe now – a mixture of 78% nitrogen, 21% oxygen and a number of other constituents, among which water vapour<\/a> and carbon dioxide are most important.<\/p>\n

Life on Earth needs the atmosphere not only for breathing. It is an important shield against cosmic radiation<\/a>, too.<\/p>\n

 <\/p>\n

Select your Case Study:<\/h3>\n\n\n\n\n\n
Trace Gases<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nMethane<\/a>, South-East Asia
\nAmong other sources, rice cultivation significantly contributes to the concentration of Methane in South-East Asia.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nOzone Hole<\/a>, Antarctica
\nThe emission of industrially produced chemical components have led to a reduction of stratospheric ozone in the Antarctic region.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Atmosphere The gaseous component of the Earth system has a total mass of more than 5000 billion tons. Nevertheless the atmosphere (from Greek atmos for vapour) is only a relatively thin layer – all relevant weather phenomena take place in the troposphere, which extends to an altitude of 12 to 15 kilometers only. Almost nothing […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-96","page","type-page","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"it","enabled_languages":["en","es","de","fr","it"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"\n- ESA Schoolatlas<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/atmosphere\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" 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