“Let’s get it done.” COP15 all-stars speak on climate change. By: admin | December 15, 2009 Print Prince Charles, Yvo de Boer and COP15 President Connie Hedegaard are among officials who spoke today at a ceremony for the High Level Segment at the UN Climate Change Conference. December 15, 2009. Support this story and all the stories from The Uptake. Donate.