"Saving" the Earth

I don't believe in "saving the Earth." 

The Earth will be fine without us.

However, if we don't get a grip on climate change and pollution, it's the large land mammals that will perish.  That means us, bozos!

Even if you don't believe in climate change...even if you don't believe that climate change is caused by human actions, don't you want to drink cleaner water TOMORROW? 

Don't you want cleaner air...now?

Of course, you may really be so nihilistic to think that none of it matters.