How cool is this - artists, like the world-famous band Coldplay, are also considering the impact on the planet of their shows, tours and travels. By powering the upcoming shows with renewable energy from a rechargeable battery, handing out free drinking water without the plastic bottles, and by installing solar panels at each venue, the band is leading by example. Will the shows be completely carbon-neutral? Most likely not, but it's a step in the right direction.