You shouldn't be dripping with sweat just from walking. I walked several miles yesterday, on a warm day, just for fun - not a drop of sweat left my brow. If you're overheating, wear less clothing. This notion "I need to be ferried around from air-conditioned box to air-conditioned box in yet another air-conditioned box so that I can obey my office's dress code in the height of summer" is not an attitude we can afford to keep, in the 21st century.

Not to say we should abolish all motorized transport. In any modern city there should be half a dozen ways of getting around that are all faster than cars. Light rail, buses, casual bicycles, and electric scooters spring to mind.