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  1. Vor 3 Tagen · It is one of several greenhouse gases in the atmosphere of Earth. The current global average concentration of carbon dioxide (CO 2) in the atmosphere is 421 ppm as of May 2022 (0.04%). [1] . This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10,000 years prior to the mid-18th century.

  2. Vor 2 Tagen · The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).

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  3. en.wikipedia.org › wiki › AstronomyAstronomy - Wikipedia

    Vor 4 Tagen · Ultraviolet astronomy employs ultraviolet wavelengths between approximately 100 and 3200 Å (10 to 320 nm). [47] Light at those wavelengths is absorbed by the Earth's atmosphere, requiring observations at these wavelengths to be performed from the upper atmosphere or from space.

  4. Vor 4 Tagen · It is one of the most important greenhouse gases linked to global warming, but it is a minor component of Earth’s atmosphere (about 3 volumes in 10,000), formed in combustion of carbon -containing materials, in fermentation, and in respiration of animals and employed by plants in the photosynthesis of carbohydrates.

    • The Editors of Encyclopaedia Britannica
  5. Vor 3 Tagen · Globale Erwärmung. Anstieg der globalen Oberflächentemperaturen im Zeitraum 1850 bis 2023 im Vergleich zu 1850–1900. Lokale Oberflächentemperaturen seit 1880 im Vergleich zu 1951–1980, gleitend über fünf Jahre gemittelt und mit einer räumlichen Auflösung von etwa 1200 km [1] Mit globale Erwärmung – umgangssprachlich auch „der ...

  6. Vor 5 Tagen · aurora, luminous phenomenon of Earth ’s upper atmosphere that occurs primarily in high latitudes of both hemispheres; in the Northern Hemisphere auroras are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere they are called aurora australis or southern lights. A brief treatment of auroras follows.

  7. Vor 4 Tagen · Earth's Atmosphere. A jacket for the planet . explore; All About Earth. The planet with living things . explore; Glossary. Find definitions of space and Earth science terms . explore; Why Is the Sky Blue?