40 million miles of road unite us. They also cause mass destruction for many species. Today, environmental journalist Ben Goldfarb and host Aaron Scott go on a tour of that destruction — the subject of Ben's new book Crossings: How Road Ecology Is Shaping the Future of Our Planet. But don't worry, it's not all grim! Along the way, we learn why fewer insects are hitting our windshields, talk about the breakthrough that is highway overpasses, and how at least one bird has adapted to avoid 18-wheel semi-trucks.

Listen to Short Wave on Spotify, Apple Podcasts and Google Podcasts.

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The speaker of the House cited "allegations of abuse of power, obstruction, and corruption" in his reasoning to direct House committees to begin the proceedings, which will start at a date to be determined. The White House called it a "political stunt" in a statement, and not all Republican lawmakers are on board with the idea just yet.

This episode: political correspondent Susan Davis, congressional correspondent Deirdre Walsh, and White House correspondent Franco Ordoñez.

This episode was produced by Casey Morell and Elena Moore. Our executive producer is Muthoni Muturi.

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The chair of North Carolina's Democratic party is just 25. Her Republican counterpart in Alabama is 37. Together, they represent a younger generation making inroads in political leadership. How do their perspectives inform their parties' plans in 2024?

This episode: political correspondent Susan Davis, and political reporters Ximena Bustillo & Elena Moore.

This episode was produced by Casey Morell. Our executive producer is Muthoni Muturi.

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More than 5,000 square miles of central California coast could soon become the newest national marine sanctuary in the United States. It could also make history as one of the first federal sanctuaries to be initiated by a Native American tribe—the Chumash—and become part of a growing movement to give tribes a say over the lands and waters that were once theirs. NPR climate reporter Lauren Sommer dives into the details with host Regina G. Barber, touching on ocean science, heritage and what's in a name.

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The former governor of New Jersey is running to be the Republican nominee for president for a second time, having lost to Donald Trump in 2016. In an interview with The NPR Politics Podcast, Christie says both he and the GOP have changed in the intervening years, but his break with Trump and Christie's positions on abortion & Ukraine increasingly put him out of step with the party he hopes to lead.

This episode: politics correspondent Susan Davis and senior White House correspondent Tamara Keith.

This episode was produced by Casey Morell. Our executive producer is Muthoni Muturi.

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Today on the show, All Things Considered co-host Ari Shapiro joins Aaron Scott and Regina G. Barber for our science roundup. They talk about how antibiotic resistance may spread through particulate air pollution, magnetically halted black holes and how diversified farms are boosting biodiversity in Costa Rica.

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Florida Gov. Ron DeSantis was once seen as the biggest threat to former President Donald Trump. But his campaign got off to a rocky start and is struggling to gain traction. In this episode, we look at how three non-Trump candidates — DeSantis, Nikki Haley, and Mike Pence — are selling themselves to voters. And whether there is a market for anyone not named Donald in the GOP primary.

This episode: voting correspondent Miles Parks, political correspondent Ashley Lopez, and political correspondent Sarah McCammon.

The episode was produced by Lexie Schapitl and Elena Moore. Our executive producer is Muthoni Muturi.

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Ken Paxton, a Republican, is facing a bipartisan impeachment trial in the Texas Senate related to allegations of corruption and bribery, which Paxton denies. Despite being a state official, Paxton has had an outsized influence in national policy, especially regarding immigration, by involving the state of Texas in lawsuits filed against the federal government.

This episode: voting correspondents Miles Parks and Ashley Lopez, and Sergio Martinez-Beltrán of the Texas Newsroom.

The podcast is produced by Elena Moore and Casey Morell. Our editor is Eric McDaniel. Our executive producer is Muthoni Muturi.

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Have frequent, burning pee? Cramping or the urge to pee even though you just went? If you haven't yet, you probably will eventually—along with an estimated 60% of women and 10% of men. That's the large slice of the population that experiences a urinary tract infections (UTI) at least once. Many people avoid talking about these infections, but about one in four women experience recurring UTIs. No matter what they do, the infections come back, again and again. So today on the show, Regina G. Barber takes producer Rachel Carlson on a tour of the urinary tract. We zoom into what recurring UTIs may have to do with changes on the DNA of our bladder cells and the hidden bacterial houses in our bladder walls.

Read more about the latest research into recurring UTIs in this article from our colleagues at NPR's global health blog, Goats and Soda.

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Most new recruits to active duty military service were either very young or not yet born when the attacks of September 11th, 2001 took place. As the U.S. nears the 22nd anniversary of the attacks, how is military recruitment changing to adapt to a post-War on Terror landscape — and what impact does it have on military readiness?

This episode: voting correspondent Miles Parks, Pentagon correspondent Tom Bowman, and political correspondent Susan Davis.

The podcast is produced by Elena Moore and Casey Morell. Our editor is Eric McDaniel. Our executive producer is Muthoni Muturi.

Audio in this podcast was produced by Lexie Schapitl.

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