At sea level air is about 1.25 kg/m³, so for one cubic kilometer cloud that is :
1 250 000 tons.
I put your result into table to show a problem at 51 km and above… since density decreases monotically with altitude.
mass (tons) | altitude (km) |
---|---|
1 250 000 | 0 |
364 000 | 11 |
88 000 | 20 |
860 | 51 |
64 | 71 |
Clouds can be easily 10 cubic km.
Humanity is so stupid when it comes to “territory” and we are not the only species that acts like beasts about it.