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Glider pilots have told me about using the heated air up drafts caused by large mall parking lots as a way to stay elevated. Amazing to think of all the air tha
by charlessw 10y ago
Glider pilots have told me about using the heated air up drafts caused by large mall parking lots as a way to stay elevated. Amazing to think of all the air that is moving around us, and then using it to "bounce" from current to current.
- WalterBright 10y agoThis suggests that more than a little bit of global warming is due to pavement.
- vacri 10y agoYou might be interested to read about Urban Heat Islands: https://en.wikipedia.org/wiki/Urban_heat_island https://en.wikipedia.org/wiki/Urban_heat_island
- WalterBright 10y agoThanks. A roofing contractor told me once that putting a white reflective coating on flat roofs instead of the usual black tar would reduce the A/C bill by about 15%.