Experts say that many cities and states, including Massachusetts, are vastly underestimating the number of people who die from heat every summer. And, as WBUR Senior Climate and Environment Reporter Miriam Wasser explains, this lack of data makes it hard to know if efforts to protect people from extreme heat are working.

Miriam joins The Common to walk us through her reporting.

Miriam's story: https://www.wbur.org/news/2023/08/31/heat-waves-mortality-excess-deaths-climate-change

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