“If future explorers come to Earth, what evidence will they find of our existence? And could advanced civilizations have existed in the deep past without us knowing?” Listen here.

“Extreme heat is no longer a future threat. It's here, and it’s costing us. From hospitals pushed to the brink, to cities built for a cooler planet, the toll is mounting on our bodies, our livelihoods and the systems meant to keep us safe. In Part 4 of our Cost of Climate Change series, we dig into the true price of rising heat, and what it might take to adapt before the next heatwave hits.” Listen here.

“What do a German heat pump and a Canadian carbon price have in common? They're both flashpoints in a growing political battle over how to cut emissions and share the costs fairly. In Part 3 of our series on The Cost of Climate Change, we follow the money and ask: Who should foot the bill — consumers, taxpayers, or polluters?” Listen here.

“In the first episode of our series on The Cost of Climate Change, we head to Miami — where vibrant nightlife, sunshine, and storm surges collide. As hurricanes intensify and insurers pull out, the cost of living in paradise is becoming impossible to ignore. Who picks up the tab for extreme weather, and how do we keep from going broke? One new Florida community might hold some of the answers.” Listen here.

“It’s a tough assignment, but someone had to do it: we go beer tasting in Belgium. How does non-alcoholic beer differ from its alcoholic counterpart - and is it better for us?” Listen here.

“Women around the world and across generations are connected by this familiar thing that you can't actually see: invisible labor. The mountain of tasks that go unseen and undervalued, and which fall mainly on the shoulders of women. From Icelandic grandmothers to Escape the Corset and 4B activists in South Korea, here's what happens when women push back.” Listen here.

“Show me your garden and I shall tell you what you are," said an English poet. What can a well-manicured lawn reveal about social status, our relationship to the Earth and the American Dream? A surprising amount. From fancy French palace gardens to suburban America, come along for the garden party as we mow over the history of the lawn – and ask if its time is up.” Listen here.

“This simple box enables so much global trade. But listener Paul wants to know – could we make it more efficient? Host Anand Jagatia travels to Europe’s largest port to find out.” Listen here.

“America's iconic national parks are a great place to reconnect with nature. But are the crowds killing the vibe? Among the red rocks and tourists of Arches National Park in Southern Utah, reporter Sam Baker asks: Do we need solitude to find serenity in nature?” Listen here.

In recent decades, a mental health crisis has been growing in high schools and on university campuses in the U.S. Globally, suicide is the fourth leading cause of death for 15 to 19 year olds. In the Midwestern state of Wisconsin, an astonishing 1/10 teens attempted suicide in 2023. One university in the state experienced 4 student suicides during its autumn semester. Here’s how the school addressed students' mental health challenges, in the wake of these tragedies. Listen here at 12:13.

“How does salt get into the world's oceans, and is melting glacier ice making them any fresher? We travel to India and the USA to answer two of your two salient saline questions.” Listen here.

“IPA – the trailblazer of craft beers – holds within it stories of empire, exploitation and evolution. We head to the pub (it's hard work, but someone's gotta do it) and explore British rule in India and its legacy today. Pour yourself a pint, because we've brewed up one ale of an episode looking at where your favorite craft beer really comes from – and everything that got exported along with it…” Listen here.

“Scientists say we're on track to cross this climate milestone in the coming decade. Listener Julian wants to know what life will look like on the other side of that threshold…” Listen here.