Climate Change has become one of the biggest, most complex issues of our time. And the warnings from some of the world's leading scientists are getting louder. But sceptics remain. Despite the data, many are unconvinced the science is on target. So we ask: is climate change man-made and, if so, what can we do to stop it?

From the crumbling ice caps of the Arctic to the shifting sands of the Arabian Gulf, Al Jazeera takes you around the world to see first-hand the impact mankind is having on our planet. Against the backdrop of a major UN Climate Change Conference in Qatar, join Nick Clark as he looks at the efforts that have been made to address Climate Change, the failures of previous agreements and the challenges that lay ahead.