Hey David,
I am Li. I have heard that you are interested in the reason why China promotes environmentally friendly shopping bags. Let me explain it to you.
Since 2 years ago,the Chinese government tried to limit the usage of plastic bags through charging at least 10 cents for each of them. This policy effectively reduced the number of plastic bags being wasted and encouraged people to use environmentally friendly shopping bags. It directly helps the environment. I believe you will be impressed by this news.
Your friend,
Hua Li