hehe, maybe I don't have a strait/direct answer, but your question reminded me of the Heal The World song by Michael Jackson. So I'll just quote some lyrics :)

"If you want to know why
There's love that cannot lie
Love is strong
It only cares of joyful giving
If we try we shall see
In this bliss we cannot feel
Fear of dread
We stop existing and start living

The it feels that always
Love's enough for us growing
So make a better world
Make a better place

Heal the world
Make it a better place
For you and for me
And the entire human race
There are people dying
If you care enough for the living
Make a better place for you and for me"

As for the question of how... well, the idea would be that it all can be made better if we change and all the changes come from a true heart, no matter the place (be it physical, mindset, a social channel etc) :)