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  1. Troposphere - Wikipedia

    The troposphere is the lowest layer of the atmosphere of Earth. Pronounced / ˈtrɒpəsfɪərˌ - poʊ -/, [1] the name comes from Ancient Greek τρόπος (trópos) 'turning, change' and - sphere. It …

  2. The Troposphere - Center for Science Education

    The troposphere is the lowest layer of Earth's atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and …

  3. Atmosphere - Weather, Air Pollution, Climate | Britannica

    Dec 17, 2025 · The lowest portion of the atmosphere is the troposphere, a layer where temperature generally decreases with height. This layer contains most of Earth’s clouds and is …

  4. Troposphere Definition - Intro to Climate Science Key Term ...

    The troposphere is the lowest layer of Earth's atmosphere, extending from the surface up to about 8 to 15 kilometers (5 to 9 miles) high, depending on latitude and weather conditions.

  5. Troposphere | NASA Space Place – NASA Science for Kids

    Jun 28, 2019 · What is the troposphere? The troposphere is the innermost layer of Earth’s atmosphere. Closest to the surface of Earth, we have the troposphere. “Tropos” means …

  6. Troposphere | Research Starters - EBSCO

    The troposphere is the lowest layer of Earth's atmosphere, extending from the surface to altitudes of approximately 10-16 kilometers, with its height varying by latitude. This layer contains over …

  7. Troposphere - an overview | ScienceDirect Topics

    The troposphere is defined as the region of the atmosphere closest to Earth, extending from the surface up to about 10 km in altitude, where almost all weather occurs and temperatures …