Remember it's Earth Day next week.  We need to defend mother nature because without us, nature will be destroy by..US.  Sounds strange from the broad general view.. but, the important point is, that life on Earth had evolved over hundreds of millions of years, but in the last 100 years has had a huge impact on the environment.  So much so that we may destroy the Earth! Well, I guess, that's not really true..since life on Earth has been around long before us...I guess, it's..uh..life on Earth as we LIKE IT.. might be destroyed. That's what we have [save the] Earth [as we like it] Day every year..uh...don't listen to me, the video says it all.