Yammer has joined the Earth Hour challenge to help save the planet. In the next 4 weeks, if 1,000 people pledge to pick up 10 pieces of rubbish each, the Yammer global team will volunteer our time in local cleanup efforts. If 10,000 people pledge, we will volunteer and donate $15,000 to the cause.

So check out the video below and take the pledge.

P.S. Bryony and I both feature on this video and please do not judge us by our ‘jump’ . It is for a good cause :-). Go on – join our challenge. All you have to do is pick up 10 pieces of rubbish. Easy.