Watch Senator John F. Kerry speak about global climate change, its implications for international security, and the diplomatic opportunities it presents.

Religious scholars and leaders discuss international efforts to address climate change, including faith-based approaches to environmental justice.

Watch Senator John Kerry (D-MA) discuss climate change as a U.S. national security threat and the opportunity for the United States to pursue global leadership on the issue.

RICHARD SALOMON:  Good afternoon.  Can I get your attention, please?  It's a pleasure for me to welcome Senator Kerry and all of you to today's program at the Council on Foreign Relations.Before I i…