Why do we need to be more aware of the sustainability of our environment?

In recent years the number of articles and documentaries attributing to the green movement have multiplied. There is so much information about why we need to go green out there but the number one reason is the health of this planet and us, every living thing inhabiting it. Just like us the more we pollute our bodies with toxins and harmful chemicals the more we die. This is what many fear, that the earth will only be able to take so much before it starts to die. Al Gore is one of the major names in the green movement and has come out with a documentary which is worth seeing. It is better to be aware so you can make a contribution to this effort.