Seriously?

Space tourism to accelerate climate change

Based on this:

The findings, reported in a paper in press in Geophysical Research Letters1, suggest that emissions from 1,000 private rocket launches a year would persist high in the stratosphere, potentially altering global atmospheric circulation and distributions of ozone. The simulations show that the changes to Earth’s climate could increase polar surface temperatures by 1 °C, and reduce polar sea ice by 5–15%.

Presumably, if those 1,000 space flights were taken by Al Gore, Leo DiCaprio, Laurie David and the like to “raise awareness,” it would be OK.