Today on Boston Public Radio:

We begin the show by talking with listeners about extreme heat waves sweeping the U.S., and their connections to climate change.

Trenni Kusnierek talks about the Boston Celtics’ new head coach, Ime Udoka, and the latest news from the Olympic and Paralympic trials. Kusnierek is a reporter and anchor for NBC Sports Boston, and a weekly Boston Public Radio contributor.

Michael Curry discusses Massachusetts’ current vaccination rate, and explains how he’s reaching out to vaccine hesitant communities. He also shares his thoughts on former police officer Derek Chauvin’s sentencing. Curry is the president and CEO of the Massachusetts League of Community Health Centers and a member of Governor Charlie Baker’s COVID Vaccine Advisory Group. He’s also a Member of the National NAACP Board of Directors, and the Chair of the Board’s Advocacy & Policy Committee.

Rick Steves talks about Europe reopening to American tourists, and offered his perspective on visiting England’s Cotswolds region. He also weighs in on Supreme Court Justice Clarence Thomas’ statement that federal marijuana laws may no longer be necessary. Steves is an author, television and radio host and the owner of the Rick Steves' Europe tour group. You can catch his television show, "Rick Steves’ Europe," weeknights at 7:30 p.m. on GBH 2 and his radio show, “Travel With Rick Steves,” Sundays at 4 p.m. on GBH.

Sebastian Junger speaks about his latest book, “Freedom,” which looks at the meaning of freedom in its many iterations. Junger is a journalist, author and filmmaker.

Rebecca Ostriker updates us on the Spotlight team’s latest reporting on the Baker administration’s response to the COVID-19 crisis at the Holyoke Soldiers’ Home. Ostriker is a news reporter for the Boston Globe.

John King talks about the condo building collapse near Miami, and climate change denialism in Congress. King is CNN's Chief National Correspondent and anchor of "Inside Politics,” which airs weekdays and Sunday mornings at 8 a.m.