"projected space tourism scenarios" study. No Thanks. Save it for another gullible group.. To equate international aircraft flights with space flight is silly.

"projected space tourism scenarios" study. No Thanks. Save it for another gullible group.. To equate international aircraft flights with space flight is silly. Sure soot is worse. There will not be as many space flights as international flights in a long time. Even at current rate it will take a while. I expected more from phys.org. Summary: "the best strategy for regulating this rapidly growing industry." Ding Ding Ding. Regulate.