ik9000
This is worse due to the altitudes involved. A-level chemistry had a module on greenhouse effect and ozone depletion (two separate things - both atmospheric) and the effect of releasing gases into the stratosphere and above is far worse than low level stuff at ground level and in the troposphere. Jumbo jets spewing CO2 at 30000 ft are worse than the same volume released at ground level. I can't remember all the equations now but these things go way higher than jumbos and 747s. a U2 was 70000ft - that's what 14/15 miles? These rockets are going right up to the mesosphere or whatever the outer bit is called. It's possible we were taught garbage, but I'd want convincing of it to write it off as such.
There is a big difference between owning a car to get around and even renting one to go on holiday vs a 5 minute weightlessness titillation.
CO2 isn't the main issue with Virgin Galactic. They use quite a dirty fuel which dumps large enough amount of oxides of nitrogen that I'm surprised it was allowed. I suspect that's something they may change if possible as it's not a good look. Or maybe Beardy is hoping his teeth will distract people.
But, unfortunately, if you decide there's a line where people can't pollute for recreation, you're on a slippery slope into tyranny. How much is too much? Who decides? What's worse is the people who do decide on such things are often owners of private jets and helicopters which robs them of all credibility. We see the boundaries between excessive and normal recreational pollution from a perspective of what is normal to us. Go back 60 years and ask people if it's necessary to jet off around the world on holiday. We see that as normal and the baseline, but if you took this argument back to a time where wealth and flight availablity was much lower, people would see those jetting off abroad in the exact same way as you're seeing Beardy. And if you questioned them getting into the family car to go to the beach for a couple of days, they'd say “well that's reasonable”. There's a big difference between going to Blackpool for the weekend and jetting off to other countries to get yer jollies in the sun.
Where do you stand on skydiving? Planes are used which pollute for a 5 minute gravity titillation. Or trackdays where vehicles can burn fuel in horrific ways for an hour or so of… some titillation. Where's the line and who draws it?
Is the science part of Beardy's space jobbie acceptable? Giving scientists cheaper access to zero-G for their experiements?
It's like motion in space, it's all relative to your point of observation. Where to draw a line is very subjective and will cause consternation.
What's worse is it's almost impossible to tell where people caring for the poor / environment begins and where resentment of the rich starts / ends. We see a lot of that corruption in this discussion as well.