They are as follows-
1) To reduce the use of chlorofluorocarbons which break downs the ozone molecules.
2) To reduce the greenhouse gases.
3) To plant more trees.
4) To reduce the use of fossil fuels at rapid rate.
5) To adopt the practice of cycling by avoiding vehicles which leaves huge smokes in the atmosphere.
6) To use ecofriendly gases such as LPG and CNG.
hope it helps.. ;)