We could ask the canteen, instead of throwing the garbage, to use the food leftovers for compost.

If we can avoid taking the car, and can come by bike to school, it is another way to pollute less !

When your batteries are out, you can recycle them and even better if they are rechargeable you can use them again after charging them back.

Instead of throwing away your clothes, either you donate them to associations who will redistribute them or recycle them. As H&M is doing : http://http://about.hm.com/en/About/sustainability/commitments/reduce-waste.html

Try to waste as less as possible. Here is the example of Bea Johnson who only wastes very little with her family of 4. She will give you 100 tips how to do the same . Follow the link : http://www.zerowastehome.com/p/tips.html

The most ecological way to go shopping is by using canvas bags.

The 3 R’s of environmental protection !

When you need to print or make copies, set your copier to make double sided copies and you will strongly reduce your paper use.

It wastes much less water to take a shower instead of taking a bath.

In certain hot countries we could use and develop solar energy by putting some panels on our roofs for example.