July is on track to be the hottest month ever recorded on Earth. Millions of people in the U.S. are living in areas with dangerous levels of heat — and a growing death toll. In a new book, The Heat Will Kill You First, reporter Jeff Goodell warns that heat is pushing us into a new climate era, with dire implications for individuals, society, and our planet. Goodell spoke with Apple News In Conversation host Shumita Basu about the changes we need to make today and the reasons he still has hope for the future.