It sounds like in the recent past pollution has become a big environmental issue for you. In The United States we have sililar problems, but have been working to find a solution much like you are. We have tried to cut down on the amount of waste we produce by recycling and reusing plastics and papers. I am sure it is difficult to recycle in big cities where there is a lot of garbage, but it sounds like you are working with this challenge through gardening, recycling and reusing goods.