Keynote speaker Dr. Robert C. Orr, Assistant Secretary-General for Strategic Planning and Policy Coordination of the United Nations touched on international action around climate change and global health. at onPhilanthropy's fifth annual Summit onPhilanthropy in New York. More than 300 philanthropists, nonprofit executives, and foundation managers filled the Yale Club on March 11th, joining in a spirited day-long discussion on trends in giving and social ventures. The Summit is a yearly event for philanthropy leaders produced by onPhilanhropy.com, the media arm of international philanthropic services company Changing Our World, Inc.