Thankfully it doesn't seem it will double again, population growth is already dropping tonnes. So then, what are you trying to say by saying there's too many people?
The most generous interpretation I can come up with is apologia for the biggest polluters, a smug way to continue to justify not polluting less ('it's just the result of so many people')
The worst interpretation is you are implying there should be less people..?
Or what other interpretation is there? You tell me.