Washington Post: “…Across much of the United States, millions of people are expected to experience extreme temperatures more frequently and for longer periods of time — a threat that will grow as climate change worsens. The new data, released Monday by the nonprofit First Street Foundation, calculates the heat risk facing each property in the contiguous United States over the next 30 years, the length of a typical mortgage, providing some of the most detailed nationwide estimates. It uses heat index, a measure of how hot it feels outside by including temperature and humidity. A Washington Post analysis of the group’s data found that today’s climate conditions have caused an estimated 46 percent of Americans to endure at least three consecutive days of 100-plus degree heat, on average, each year. Over the next 30 years, that will increase to 63 percent of the population…”