Entanglements, by Undark

This week on Entanglements: Is fluoride toxic at low levels? Our hosts explore this question in conversations with a professor from the University of Illinois Chicago College of Dentistry and a neuropsychologist and professor at York University.

This week on Entanglements: Should we unleash GMO mosquitoes? Our hosts explore this question in conversations with a molecular biologist from the University of California, San Diego, and a social scientist from North Carolina State University.

This week on Entanglements: Is the misinformation crisis overblown? Our hosts explore this question in conversations with a social psychologist from the University of Cambridge and a cognitive scientist from the Intstitut Jean Nicod.

This week on Entanglements: Is cannabis safe for people with severe mental health disorders? Our hosts explore this question in conversations with a psychiatrist from Yale School of Medicine and a neuroscientist from the University of Calgary.

This week on Entanglements: Could the Covid-19 pandemic have been sparked by a lab leak? Our hosts explore this hot-button question in conversations with a Weill Cornell microbiologist and a Broad Institute scientist who is an avid lab-leak proponent.

This week on Entanglements: Should citizens decide on risky science? Our hosts talk to an Oxford political scientist and a former law and ethics professor about how democracy should play a role in high-stakes decisions.

This week on Entanglements, hosts Brooke Borel and Anna Rothschild talk to a former OpenAI employee and a Princeton professor about AI and doom. Could AI really become an existential threat to humanity? Or is the possibility — highlighted by some 300 AI experts in an open letter last year — overhyped?

The Undark podcast is back with a new format and a new name: Entanglements. Tune in as our hosts explore some of the most contentious topics in science today. Our first 8-episode season will launch November 11, with new episodes dropping every Monday through the end of the year. 

This month: Some regions of the deep ocean contain vast amounts of key minerals, like cobalt and nickel, that are needed to power clean energy technologies. But some scientists warn that mining them could have tremendous consequences, not just for underwater ecosystems, but for the planet as a whole.

This month: Twenty-six years after the end of the Bosnian War, farmers in Livno are once again making cheese the traditional way, grazing herds of sheep on the wide-open plains. The animals' return is restoring natural wetlands, leading to cascading impacts on the environment and the economy.

For scientists who come from abroad to live and work in America, accents can be personal. It's discouraging to be misunderstood, even when they think they’re speaking clearly. Sometimes, it could even be a career liability. Is the problem the accent, or those on the receiving end?

Residents of Lebanon's Beqaa Valley say pollution in the Litani River is responsible for a host of chronic health problems. While a causal link is hard to prove, cleanup efforts are precarious amid the country's economic crisis and shifting blame between refugees and government inaction.

Alkaline hydrolysis is an end-of-life option that’s gaining popularity in Canada and the U.S. It’s marketed as a greener form of cremation — a way to still end up with ashes, but without sending harmful emissions into the air. But getting the technology approved by lawmakers has proven difficult.

When Pervis Payne was sentenced to death more than three decades ago, it was permissible to execute someone with an intellectual disability. A Supreme Court decision changed that in 2002, but Payne's disability was acknowledged only last year. Why did it take so long to remove him from The Row?

Urbanization in Lagos, Nigeria, is moving at a rapid clip — burying mangrove forests and wetlands under mounds of sand to make way for wealthy subdivisions. Without strong regulations around how that sand is harvested, the social, economic, and environmental consequences are vast.

Scientists and counterterrorism experts believe understanding the underlying motivations of radical extremists will help them deradicalize people. Now, one group has studied the brain activity of active extremists after asking them to contemplate the values they are willing to fight and die for.

In December of last year, Congress passed legislation that gives the Environmental Protection Agency authority to phase out most hydrofluorocarbons — potent greenhouse gases that keep refrigerators cool — over the next 15 years. But there's no perfect alternative to replace them.

Twenty years ago Portugal decriminalized all drugs as part of a bigger national strategy to fight addiction. Last month Oregon became the first U.S. state to do the same, in a policy modeled off Portugal’s approach — but many questions about how success may translate remain unanswered.

Amid a worldwide mental health emergency, the discovery of new pharmaceuticals to treat conditions like depression has stalled. But researchers and therapists are showing that when paired with therapy, psychedelic drugs like LSD and magic mushrooms are a new class of promising treatments.