The 7

Wednesday briefing: Biden social media ruling; Philadelphia shooting; suspected cocaine at the White House; ‘Barbie’ ban; and moreRead today's briefing.

To hear the rest of the series, follow “Field Trip” wherever you listen. California’s Sierra Nevada is home to a very special kind of tree, found nowhere else on Earth: the giant sequoia. For thousands of years, these towering trees withstood the trials of the world around them, including wildfire. Low-intensity fires frequently swept through groves of sequoias, leaving their cinnamon-red bark scarred but strengthened, and opening their cones to allow new seeds to take root.But in the era of catastrophic wildfires fueled by climate change, these ancient trees are now in jeopardy. And Yosemite National Park is on the front lines of the fight to protect them.In the first episode of “Field Trip,” Washington Post reporter Lillian Cunningham takes listeners inside this fabled landscape — from the hush of the Mariposa Grove to the rush of the Merced River — to explore one of America’s oldest and most-visited national parks.We’ll hear from Yosemite forest ecologist Garrett Dickman on the extreme measures he’s taken to protect iconic trees; from members of the Southern Sierra Miwuk working to restore Native fire practices to the park; and from Yosemite superintendent Cicely Muldoon about the tough choices it takes to manage a place like this.We’ll also examine the complicated legacies that conservationist John Muir, President Abraham Lincoln and President Theodore Roosevelt left on this land.The giant trees of Yosemite kick-started the whole idea of public land preservation in America. Join us as we visit the place where the idea of the national parks began — and ask what the next chapter might look like. You can see incredible photos of Yosemite and find more on the national parks here. Subscribe to The Washington Post with a special deal for podcast listeners. Your first four weeks are free when you sign up here.

Friday briefing: Affirmative action; Canada wildfire smoke; Scot Peterson; France protests; Travis Scott; Grimace shake; and moreRead today's briefing.

Thursday briefing: Canadian wildfire smoke; Titan sub wreckage; flight cancellations; Madonna’s health; Domingo Germán; and moreRead today's briefing.

Wednesday briefing: Supreme Court election law ruling; Canadian wildfire smoke; Julian Sands; Ryan Seacrest; and moreRead today's briefing.

Tuesday briefing: Putin speaks after Russia revolt; Trump audio; Colorado nightclub shooting plea; U.S. malaria cases; and moreRead today's briefing.

Monday briefing: Wagner rebellion in Russia; Titanic sub investigation; Supreme Court decisions; Canada wildfire smoke; and moreRead today's briefing.

Friday briefing: Titanic sub implosion; Supreme Court decisions; NBA draft; Elon Musk vs. Mark Zuckerberg cage fight; and moreRead today's briefing.

Thursday briefing: Titanic sub search; Texas tornadoes; Yinchuan explosion; how to watch the NBA draft; lab-grown chicken; and moreRead today's briefing.

Wednesday briefing: Titanic sub search; Hunter Biden plea deal; Arkansas transgender law; Texas heat; summer solstice; and moreRead today's briefing.