I think the only thing that we are irrevocably doing at the moment is burning through millions of years of stored sunlight so that we can make lots of i-phones and cars.

Vrooom! Beep, beep! Vrooom!

And airplanes. Airplanes are fun! They go Vroom, vroom in the sky!

Also, we are reducing biodiversity because that's fun, too.

Last edited by JonLaw; 03/13/15 05:54 PM. Reason: Adding an additional side-effect to having lots of fun.