If you need a bit of a giggle, not to mention some informative bricks to throw at certain people, occasionally take a peek at the Extinction Clock.
Blog it, Gab it, Fakebook it, Twatter it, email it to green-inclined folk you know. This is absolutely perfect for dinner party discussions and family gatherings as well, as you do not need to explain it, just get them to read it and stand back with a smug expression saying nothing 