Alaska and Maine use ranked choice voting in elections. Four other states could soon join them. We learn why more states are considering ranked-choice voting.

Duke University recently announced plans to close and re-home its century-old herbarium. But with climate change and a looming biodiversity crisis, scientists say these preserved collections of old plants are more important than ever.

Listen: The first chapter of Endless Thread’s podcast Beyond All Repair.

Host Amory Sivertson first met Shane Correia in 2017 while interviewing him about his experience with homelessness for WBUR’s Endless Thread.

But there is another dark chapter in Shane's life: his older sister being accused of murdering her mother-in-law in 2002, when he was 13 years old. Now Shane wants to know, did his sister commit this brutal crime?

On Point news analyst Jack Beatty on how presidents lose touch with reality.

Given the environmental, political, and human costs of accelerating mineral mining, can the United States reach its clean energy goals? It's the final episode of our special series "Elements of energy."

To electrify our economy, the world needs more nickel. And Indonesia has it. Can nickel pave the road to prosperity? In part four of “Elements of energy," hear how the rush for metals is shaking up global geopolitics.

Most of the world’s cobalt is extracted in the Democratic Republic of Congo. But to get it, hundreds of thousands of Congolese people labor with no other means to survive. On episode three of On Point’s special series -- cobalt and the human cost of mining.

Copper is key to our green energy future, but copper extraction is deeply harmful to the environment now. Episode two of On Point’s special series “Elements of energy” explores how to resolve that contradiction.

The U.S. sits on some of the largest lithium reserves in the world. It’s a key element for clean energy. The start of On Point’s weeklong exploration “Elements of energy” takes us inside America’s push for a lithium boom.

On Point news analyst Jack Beatty on President Biden’s State of the Union address and the politics of memory, versus the politics of hope.