Colaborate or donate

There is a lot of people who already is working hard to preserver the planet. You can join any of those ONG or contribute donating an small quantit of money each month.
A few examples of ONG are:

• Greenpeace
• Sea Shepherd
• Clean up the world
• PETA

And probably close to you there are at least one organization that takes care of lost animals.

Each one should donate according his possibilities. Start with an small amount and in the future increase your contribution if you can.