 The non-advocacy nonprofit Climate Central analyzed 65 cities and says tens of millions live in places where temperatures can run up to 12 degrees higher than they are in neighboring communities, putting residents' health at risk. We asked Climate Central senior data analyst Jennifer Brady to explain. What's happening in urban cities is there's a lot of additional heat in cities. So the baseline temperature is going up for everyone. And this is one thing, the reason we wanted to tackle urban heat islands is because a lot of people,