Plastic bottles have nothing to do with global warming. Yet, they are devastating to the environment.
The biggest problem is huge masses of plastic gathering in the oceans, slowly being broken into bits, being eaten by sea life. It stays in their stomachs, never to be digested. I figure it releases some nasty chemicals too.
Once-pristine beaches are becoming littered with plastics, much of it from China.
I wish it was reasonable to ban plastic bottles and return to glass, which is nontoxic and easily recycled. I just don't think that will happen.
We have to burn a whole lot more fuel to transport heavy glass bottles after all. Plus, they are easily broken.