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..

A selection of Ted talks to understand more about sustainable cities. The eleventh sustainable development goal for 2030.