COP21

Just a decade ago, humanitarian groups working to address everything from education to poverty competed with climate change for public attention and development dollars. Now, leaders of groups focused on solving a whole slew of...

Progress on climate change hinges on placing women at the center of the COP21 agenda

These are today's best ideas

The President told international leaders that the world needs a long term strategy for a low carbon future

Protesters threw shoes and bottles at police officers, who retaliated by deploying tear gas