I was born in the early 70s as part of the MTV generation who were told by a million adverts that the point of our existence was to shop more. Daunting though the task ahead may be, I feel enormously inspired and quite relieved that it turns out that we have something important to do. The people who came before us didn't know about climate change and the ones who come after will be powerless to stop it. So it's down to us. Other generations came together to overturn slavery or end apartheid or win the vote for women. There is nothing intrinsically more useless about our generation and there is no doubt about what we have to do. The only question which remains is whether or not we give it a go.