I am backing Earth Hour 2015, when people across Wales and around the world will be switching off the lights for an hour to help save energy and build a more sustainable future. Earth Hour is a global initiative and takes place this year on Saturday 28 March at 8.30pm, organised by WWF. Increasing numbers of Welsh businesses and public bodies including County Councils, Universities, the Senedd and Caerphilly Castle have already pledged their support. In 2015, WWF Cymru is asking people in Wales to mark the event by holding a candlelit dinner. Simply switching off the lights for just an hour is a gesture that can makes a difference to our energy consumption, it will teach us to consume less and send a message that saving energy and developing sustainable energy is important. By consuming less energy and making sure that the energy we do use comes from sustainable renewable sources is vital for all of our futures. Let's show the world how much we in Wales care about the planet.