Oh come on guys, this is a new member and he's asking a legitimate question,
probably appropriate to his/her age.
Welcome to a2k, Starchild
You have a pretty idealistic outlook for changing the world. Poverty, pollution
and destruction in the world is something you cannot control, not even if you
were president of the United States. What you can do however, is change the
immediate surrounding of your world, which means: you can help out in
your very own community by volunteering in soup kitchens, donate time
and money to the poor, live frugal and without greed, recycle your waste,
make others aware of pollutants and live a dignified life dedicated to others.
That would be the contribution you can make for yourself and others within your means.
In other words, you start with being a good example to others and
hope they'll follow your intent.