What are your ways to keep our environment clean and green

What are your ways to keep our environment clean and green,

Do not throw garbage anywhere.  Plant more trees to avoid flash flood. Do not pick flowers if you are not permitted. Get the garbage and trashes at the sea. Throw garbage in right places. Do not smoke and do not burn plastics to prevent from air pollution. Always clean your surroundings. Get all the trashes you've seen anywhere. Preserve nature. Don't leave your trashes anywhere. Do not also   throw garbage at the ocean to avoid flash floods and tsunamis.