The United States is facing renewed pressure on financing climate aid for poorer countries in the aftermath of a U.N. report warning of global warming’s impact. The Intergovernmental Panel on Climate Change said Monday that climate change will have dire consequences for the world’s poorest countries, and urged rich countries most responsible for greenhouse emissions to help them adapt. The report cited a World Bank study calling on rich countries to provide climate aid of as much $100 billion per year, of which the United States would be responsible for up to $30 billion. Panel chair Rajendra Pachauri said climate change has become an issue of global security.

Rajendra Pachauri: “There is a reason for the world not really neglecting the findings of this report, because they are profound. And let me repeat once again, we have said very categorically in this report, the implications for human security. We have reasons to believe that if the world doesn’t do anything about mitigating the emissions of greenhouse gases and the extent of climate change continues to increase, then the very social stability of human systems could be at stake.”