View full lesson: http://ed.ted.com/lessons/clay-shirky-how-social-media-can-make-history While news from Iran streams to the world, Clay Shirky shows how Fa...

(http://www.climaterealityproject.org) Hosted by Al Gore and The Climate Reality Project, "24 Hours of Reality: The Cost of Carbon" highlights the impacts of...

Wunderkind Adora Svitak sagt die Welt braucht "kindisches" denken: wagemutige Ideen, wilde Kreativität und speziell Optimismus. Die großen Träume von Kindern...

The Young Turks host Cenk Uygur shares some stunning facts about the richest and poorest Americans as well as corporate profits. The Largest Online News Show...

Luis Capelo discusses the important role of the Digital Humanitarian Network as a interface between the volunteer technical communities and the traditional humanitarian response organizations, highlighting the collaboration framework for how to work with the V&TC community

The Economist reports on how immigrants help both the countries they leave and those to which they move. Added to www.audiovideo.economist.com in October 200...

Disability discrimination downloads: http://bit.ly/1KRr8vd If we’re not used to dealing with disabled people, we may feel awkward when we come across someone...

Clouds affect the energy Earth receives, keeps and emits back to space -- it's all a matter of balance. Dr. Bruce Wielicki is senior scientist for Earth scie...