I dare anyone to watch Greenpeace's "homeless polar bear" and not be moved. While I'm not the usual Greenpeace supporter, this ad interrupted my TV viewing and made me want to head online and find out more. And yes, as a result I did sign the petition, the power of a TV ad.
The campaign has some big names supporting it including Sir Paul McCartney, The Red Hot Chilli Peppers, Radiohead (the soundtrack to the ad is their song "Everything in it's place") and Jude Law (who voices the ad).
If you too feel moved to action, visit www.savethearctic.org to sign the petition.