Melinda Gates makes a strong argument for contraception as an international health issue.  The Bill and Melinda Gates Foundation believes all people deserve the chance to lead healthy,

Melinda Gates makes a strong argument for contraception as an international health issue.  The Bill and Melinda Gates Foundation believes all people deserve the chance to lead healthy, productive lives. The videos on this page relate to the foundation's work in global health, global development, and U.S. education. TEDx program. Visit the Foundation's YouTube channel on Global Health Stories.

David Holmgren is co-originator (with Bill Mollison) of the permaculture concept and author of the recent book,

David Holmgren is co-originator (with Bill Mollison) of the permaculture concept and author of the recent book, PERMACULTURE: Principles and Pathways Beyond Sustainability. He talks about the need to move beyond the lulling hope that 'green tech' breakthroughs will allow world-wide 'sustainable consumption' to the recognition that dwindling oil supplies inevitably mean a mandatory 'energy descent' for human civilization across the planet. He argues that permaculture principles provide the best guide to a peaceful societal 'powering down."

Bill George is Professor of Management Practice at Harvard Business School, where he is teaching leadership and leadership development along with several