many people use plastic bag. You go to 7-11, Big C, max value or any shopping mall. There are mostly plastic bag available. That is not a good lifestyle that we carry everything with a ton of plastic bag. However, I can see that in more luxurious shopping mall, they don't offer plastic bag. They suggest that you take paper bag instead or you bring your own plastic bag and put items inside there. One of the most important is the plastic bag... they don't suggest in the environment and they are going to harm. The other problem is the chemical problems. For example, not only in Bangkok but also in Chonburi, part of the Maptaput industrial part. There are so much oil, petroleum companies and they dispose the chemical waste into river. That is harmful phenomena to the environment, for the water. Its will come back to the cycle, to the human, organism. In conclusion, they should use less plastic bag, we should increase number of trash bins and also decrease number of chemical waste. If we do these, I think I can see the optimistic future for bangkok.