Is the Global Parliament of Mayors a game changer?

On why the Global Parliament of Mayors believes that cities can better address global problems.

If they work together, mayors can not only effect change at the local level but also far beyond the city limits. The Global Parliament of Mayors (GPM) thus seeks to shift more power towards cities and drive systemic change at national and global scale. Why is such an initiative important? And can it succeed?

Charles finds out from Mayor of Mannheim and GPM chair, Peter Kurz.