Alaska's Salmon Are Shrinking

Science doesn’t always get it right the first time—and that’s part of the journey. In this anniversary episode, we explore how ideas about nerve damage, sustainable materials and alien life have done a full 180. Recommended Reading Celebrating 180 Years of Scientific American 180 ... Show More

Peanut allergies have surged dramatically in recent decades, and scientists are still working to understand why. In this episode, journalist Maryn Mckenna, who recently authored an article on the subject, and host Rachel Feltman explore the latest research on causes, treatments a ... Show More

Biologist Nathan Lents joins Science Quickly to explore the vast sexual diversity found across the animal kingdom. His new book, The Sexual Evolution: How 500 Million Years of Sex, Gender, and Mating Shape Modern Relationships, challenges the binary framework that has long shaped ... Show More

Dan Saladino investigates the possible extinction of wild Atlantic salmon within 20 years. Dan travels from the River Spey on Scotland's east coast to fish farms in the west in order to plot the decline of one species, the wild salmon, and the rise of another, farmed salmon.From ... Show More

Salmon farming is a massive global industry. Just off the coasts of countries like Norway or Chile, hundreds of millions of these fish swim around inside big ocean nets. They provide crucial proteins and fatty acids to many people’s diets, but are they more or less healthy than t ... Show More

This year, there's no fresh, locally caught salmon. The season was closed. So few adult fish are now in the ocean off the California coast, fisheries managers decided they all were needed to return to their natal streams and spawn.Guest: Danielle Venton, KQED Science Reporter Muc ... Show More

Alaska has an obvious imperative to develop its oil. But climate change is already underway, and the Arctic is warming at nearly four times the global rate. What does our thirst for oil mean for Alaska’s ice? In the second episode of a special two-part series, Charlotte Howard re ... Show More

All week on Farming Today we're looking at the salmon industry - from wild populations to salmon farming. Scottish salmon is the UK’s biggest fresh food export with overseas sales hitting £614 million in 2021, up 36 per cent from 2020. But it can be a controversial topic and we h ... Show More

Sockeye and Chinook salmon make one of the world's great animal migrations, swimming 900 miles from the Pacific Ocean up 6,500 feet into Idaho’s Sawtooth Mountains, where they spawn and die - but that journey may not happen much longer. In addition to the gauntlet of predators th ... Show More

The Sustainable Food Trust publishes a report today exploring regenerative farming and what impact this might have on self-sufficient food production in the UK. This year was one of the worst avian flu outbreaks for poultry and the disease is also hitting sea birds. Hundreds of b ... Show More

Dotted across the Great Basin of the American West are salty, smelly lakes. The largest of these, by far, is the Great Salt Lake in Utah. But a recent report found that water diversions for farming, climate change and population growth could mean the lake essentially disappears w ... Show More

Endangered North Atlantic right whales are disappearing from their native waters, a serious danger for a species with only 340 animals left. The mystery behind this change took NPR's climate reporter Lauren Sommer 2,000 miles away to the world's second-largest ice sheet, sitting ... Show More

Meteorologist, Peter Gibbs investigates the global impact of the weather phenomenon El Nino. Forecasts predict El Nino will occur at the end of this year, creating fear in many communities around the world.Flooding, drought and famine have all been caused by the phenomenon in the ... Show More