I do not know about the effects of plastic decomposition on the climate.

But the replacement of animal products by vegan food is the only sane choice for medical, ethical, economic and ecological reasons.

http://www.cowspiracy.com/

http://www.whatthehealthfilm.com/

https://www.youtube.com/channel/UCGJq0eQZoFSwgcqgxIE9MHw/vid...

https://www.youtube.com/channel/UCJRjK20fHylJyf-HiBtqI2w/vid...