In a major new report released Monday, the United Nations is calling for immediate and drastic cuts to greenhouse gas emissions in order to stop global warming. The “final warning” by the Intergovernmental Panel on Climate Change comes as the death toll from Cyclone Freddy just swept through southeast Africa, killing hundreds of people and displacing hundreds of thousands more. Climate justice activist Dipti Bhatnagar with Friends of the Earth Mozambique describes it as “yet another reminder that climate impacts are not in the future but very much happening to our communities right now.” We also continue our conversation with environmental activists Bill McKibben, co-founder of 350.org, and Ben Jealous, executive director of the Sierra Club.