'Health is the face of climate change': how can cities mitigate the impact of global warming

A Lancet report released last week found that since the 1990s, heat-related deaths have increased 23% to 546,000 annually as global temperatures rise. We speak with Emilia Carrera, Director of the Health Initiative at the Rockefeller Foundation, about how urban areas can mitigate the impact of global warming in cities and protect residents in urban areas.