… so better to give up? What’s your solution

Your sons are speaking from their experience, which may not be the same as yours.

By the time we run out of land we’ll all be long gone, and there will be complementary solutions.

As long as new trees start at a higher rate than the old ones fall down…

Maybe I should be a mask designer.

Sometimes, sure.

… don’t cut them down?

You’d think we’d have the technology to invent a shaving device that made faces mask-ready