300 miles is a very very very, thin and fragile layer, in relation to the surface area of the planet. i should rather prefer to take very good care of it, had i any say in the matter.
The troposphere is the lowest portion of Earth's atmosphere. It contains approximately 75% of the atmosphere's mass and 99% of its water vapour and aerosols.[2] The average depth of the troposphere is approximately 17 km (11 mi) in the middle latitudes. It is deeper in the tropics, up to 20 km (12 mi), and shallower near the polar regions, approximately 7 km (4.3 mi) in winter. The lowest part of the troposphere, where friction with the Earth's surface influences air flow, is the planetary boundary layer. This layer is typically a few hundred meters to 2 km (1.2 mi) deep depending on the landform and time of day. The border between the troposphere and stratosphere, called the tropopause, is a temperature inversion.[3]
There are other constituents of course but they’re measured in parts per million (ppm) Hotwater :scholar: :scholar:
Methane gas produced by 90 farting and belching cows caused an explosion in a German dairy farm, blowing the roof off and injuring one of the animals. - police in the central German town of Rasdorf said in a statement reported by Reuters. One cow was treated for burns. Hotwater
