Take a road trip with us this summer as we revisit one of America’s most iconic landscapes: the Grand Canyon. This episode originally aired in 2019 to commemorate the 100th anniversary of the Grand Canyon’s designation as a national park. In this episode, host Dan LeDuc explores the beauty and geological history of this natural wonder with Wayne Ranney, a geologist who has spent his career studying the canyon.
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Ken Burns: ‘America’s Storyteller’ on His Creative Process
In this episode, acclaimed documentarian Ken Burns offers us a look into his dynamic creative process and shares what inspires him to create powerful, enduring narratives of iconic historical figures and periods. Since this episode originally aired in 2020, Burns has captivated audiences with documentaries on Ernest Hemingway, Muhammad Ali, Benjamin Franklin, the U.S. and the Holocaust, and the American buffalo as well as Burns’ first non-American figure and topic: Leonardo da Vinci. This fall, he will release a new series on PBS about the American Revolution and how the nation’s founding turned the world upside down.
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Scientists at Work: Why Do Mosquitoes Bite You?
This summer, we’re taking another look at one of the peskiest and deadliest insects on the planet: the mosquito. Millions of people are infected each year by diseases transmitted through mosquito bites, such as dengue fever, yellow fever, and malaria. In this episode, which originally aired in 2019, mosquito expert Carolyn “Lindy” McBride, a 2015 Pew biomedical scholar, shares the science behind why you may be more susceptible than other people to their bites.
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Keeping the Lights on in the Age of AI
As artificial intelligence grows in popularity, new data centers must accommodate the systems’ enormous need for energy. At the same time, household energy usage is rising throughout the United States. These increasing demands for electricity are stressing our nation’s aging electric grid. In this episode of “After the Fact,” we travel to Houston—the epicenter of the U.S. power industry—to talk with experts, journalists, and electricity providers about why investments in modernizing the grid are necessary for preventing higher energy bills for consumers, or worse, blackouts that leave communities in the dark. We also explore how innovative solutions such as tapping into battery storage and “microgrids” could connect nearly 2,600 gigawatts of alternative energy capacity to the grid, which would double the nation’s available power supply.
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Scientists at Work: The Wonder of Blue Whales
Because of their massive size, blue whales are known as the ocean’s “gentle giants.” They are vital to the ocean ecosystem, but their numbers are declining. In this episode, 2016 Pew marine fellow Dr. Asha de Vos unpacks the significance of blue whales to our ocean’s health and how effects from human activity, such as increased shipping and the whale-watching industry, influence the blue whale’s population and migratory pattern. Since this episode first aired in 2019, de Vos has continued conservation efforts through her organization, Oceanswell, and has advanced research on the effects of plastic pollution in Sri Lanka.
After the Fact is a podcast from The Pew Charitable Trusts that brings you data and analysis on the issues that matter to you—from our environment and the sciences, to larger economic trends and public health. Experts from Pew and other special guests discuss the numbers and trends shaping some of society’s biggest challenges with host Dan LeDuc, then go behind the facts with nonpartisan analysis and stories.
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