One thing I am absolutely sure about: you have to open your eyes and open your mind: watch and think...don't believe in anything people are telling you on the TV, on the radio, from the companies, the politicians - try to find informations...talk to people..ask questions. And if you don't like what you see - stop complaining and  don't wait for someone else to change something - be the change. Everyone is important and everyone can do something. You can start with small things...collecting garbage at the beach is always a good thing to do...enjoy the fresh air and do something for the environment. Stop buying water in plastic bottles - its just expensive and the tap water (especially in Germany) is very good and much cheaper. Save water whereever you can...don't take a bath - take a shower...even better if you can share the shower with someone :-)) It is more fun and also better for the environment. You see...doing something good can also be fun and easy.

 Avoid plastic wherever you can. Don't buy things you don't need just because some people are telling you that you need it. (These fuckers normally just want your money ;)