The troposphere is the lowest part of Earth's atmosphere and place of our daily weather phenomenons. When asking questions specifically about the troposphere, use this tag and also include the [atmosphere] tag and [meteorology] tag.

It extends from ground to about 8 km (poles) - 20 km (tropics) and contains about 75% of the atmosphere' s total mass. Temperature decreases with approximately 1K/100m in absence of clouds.