The People’s Climate March is the biggest global call-to-action on climate change in history. Hundreds of thousands of people across the globe are marching, demanding that world leaders take action on climate change. The march is held before the New York Climate Summit on Tuesday 23 September 2014. The summit, called by UN Secretary General Ban Ki-moon, will be attended by more than 120 world leaders and will be the largest gathering of world leaders to discuss climate change since the Copenhagen Summit in 2009.