50 years ago this week, at age 14, I took my first airline flight. My buddy Greg and I finished Sunday-morning caddying at a country club (earned five bucks for 18 holes!), got on our bikes, rode 9 miles to the Minneapolis/St. Paul airport, and - just for fun -- flew to Rochester Minnesota, 72 miles away. The ticket cost $10.50 round-trip.
We have regulations for everything, but actually we have no regulation for energy efficiency, which means that we can still put all the CO2 we want in the atmosphere and we have no international regulations for the environment, which means that in international waters, everybody is still allowed to do everything.