A sweltering summer is continuing around the world, as the planet continues to break records for the hottest day in recorded history. In the US, medical officials and utility companies in multiple cities are struggling to keep up. In this episode, we look at why power grid resiliency is so crucial to our climate futures and how an initiative is helping to electrify parts of Navajo Nation. 

Guest: Ed Lavandera, CNN Senior National Correspondent

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