Looks like we narrowly missed by crunched by space debris the other night. Although, in true “tragedy of the commons” style “[a]stronauts routinely trash equipment in space.” So, as the world starts to think about trying to fix the mess we made of the ozone layer, we’re already on our way to trashing another part of the environment that’s common property.
I wonder if it’s actually cheaper to fill it with junk now and fix the problem later. Presumably the marginal cost of the cleanup will be lower when technology improves, and it’s discounted from the current perspective. However, since the problem is not the junk itself but the lack of property rights giving nobody an incentive to do anything, I doubt that calculation is being made by anyone.