This reminds me of a YouTube video, I saw within the last ten days here, where a stand-up comedian talks about, how the planet does not need saving, it will find out ways to save itself. I can't find it now though.

Scientists cannot find a way to degrade plastic does not necessarily mean plastic is not bio-degradable.

I have found time and time again, that stand-up comedians are the ones who make the most serious points.

EDIT: Found it - http://www.youtube.com/watch?v=eScDfYzMEEw