CBS: About 1,200 middle school children trudged through the latest snow storm to the United Nations General Assembly on Friday evening to hear hip hop singer and producer Pharrell Williams talk about climate change.
The U.N. sponsored the event, along the U.N. Foundation and MixRadio, to celebrate International Day of Happiness, established by the world organization in 2012. It transformed a normally conflict-focused, staid venue into a dramatically "happy" environment with a clear message: The next...