It seems the term biodegradable is not being used for its true meaning. The oil industry is using it to give the impression that it is safe. In fact, it is even more dangerous once it becomes trash.

https://www.huffpost.com/entry/un-biodegradable-plastics_n_57435cb2e4b045cc9a71afa5

 

Here is a story about how a new version of plastics has potentially changed its biodegradability. But, it still is not safe.

https://news.berkeley.edu/2021/04/21/new-process-makes-biodegradable-plastics-truly-compostable/

Global weather issues