Sing for the Climate is a big singing manifestation that first took place on September 22 and 23 2012 in Belgium. More than 80.000 people in more than 180 Belgian cities and communities sang the song "Do it Now", urging politicians to take more ambitious climate measures both on local, national and international level. This video is a synthesis of recordings that were made in all locations. The success of 'Sing for the Climate' proves that a mass mobilization around climate change is still possible even after the COP15 in Copenhagen.