Evening Edition: UN Conference Alleges Climate Change Causing Mass Migration

The climate change conference that took place this month has shown that the world is failing to limit global warming to pre-industrial age levels. The manifestations of climate change can be seen in drought, rising sea levels and food shortages. FOX's Trey Yingst speaks to Dr. Shira Efron, a Senior Research Fellow at the Institute for National Security Studies, who says climate change concerns should be considered national security issues.