We live in the troposphere.
Understanding Earth's Atmospheric Layers
The Earth's atmosphere is divided into several layers, each with distinct characteristics. The layer closest to the Earth's surface is the troposphere. This is where we live, and where nearly all weather phenomena occur.
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Troposphere: This is the lowest layer, extending from the Earth's surface up to an altitude of about 7 miles (11 kilometers). It contains most of the atmosphere's mass, including the majority of water vapor and clouds. All weather occurs within this layer. [Source: Multiple sources cited below confirm this fact].
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Stratosphere: Above the troposphere lies the stratosphere, home to the ozone layer which protects us from harmful ultraviolet radiation. This is where planes typically fly.
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Mesosphere: Beyond the stratosphere is the mesosphere, the coldest layer of the atmosphere.
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Thermosphere & Exosphere: Further out are the thermosphere and exosphere, progressively less dense and extending into space.
Multiple reputable sources, including NOAA (https://www.nesdis.noaa.gov/news/peeling-back-the-layers-of-the-atmosphere), the University Corporation for Atmospheric Research (https://scied.ucar.edu/learning-zone/atmosphere/layers-earths-atmosphere), and various educational websites (https://socratic.org/questions/what-layer-of-the-earth-do-we-live-on, https://www.toppr.com/ask/question/what-layer-of-the-earth-do-we-live-on/, https://brainly.com/question/12904354) confirm that humans inhabit the troposphere. This is where we experience daily weather changes and atmospheric conditions.
