3.3.1 Troposphere

Last updated at August 31, 2026 by

Which layer of the atmosphere do we actually live and breathe in?
Troposphere
Tropo-
Greek for 'turning, mixing'
-sphere
a layer
↓
The lowest layer, up to about 12 km, where nearly all weather occurs.
  • The troposphere is the most important layer of the atmosphere.
  • It has an average height of about 12 kilometres .
  • Temperature decreases with increasing altitude here.
  • The air we breathe, most water vapour and clouds exist here.
  • Nearly all weather phenomena occur in this layer.
  • It is separated from the stratosphere by the tropopause .
3.3.1 Troposphere - Atmosphere and Climate - [Teachoo] - Concepts
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