Why do we turn to nonprofits, NGOs and governments to solve society's biggest problems? Michael Porter admits he's biased, as a business school professor, but he wants you to hear his case for letting business try to solve massive problems like climate change and access to water. Why? Because when business solves a problem, it makes a profit -- which lets that solution grow. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more.

Harvard Professor Lawrence Lessig makes the case that our democracy has become corrupt with money, leading to inequality that means only 0.02% of the United States population actually determines who's in power. Lessig says that this fundamental breakdown of the democratic system must be fixed before we will ever be able to address major challenges like climate change, social security, and student debt. This is not the most important problem, it's just the first problem..