In 2003, a deadly heat wave hit Paris, causing the death of over 15,000 people. It was one of the first weather events where scientists could use data to show climate change was to blame. Since that time, we've seen an increasing number of deadly natural disasters, from Hurricane Katrina to Hurricane Harvey, to the 2018 California wildfires, all irrefutably linked to climate change. In this episode, we talk to the activists who say not enough is being done by politicians and big corporations to slow down the warming. We follow Marlena Fontes of Climate Families NYC to this year's "Summer of Heat" protests, where she is arrested. She was galvanized into action five years ago, by a heat wave that hit New York City right as her son was born. "It was definitely part of my postpartum experience, looking at my baby and then thinking about what was happening in the world," she says. And we hear from protestors including legendary actress Jane Fonda, who wants justice. "We have to fight," Fonda says. "If enough of us fight, we're going to win."Lastly, we look at the upcoming U.S. presidential election and how the candidates plan to address (or not address) climate change.