KGNU - How On Earth

CU Boulder Computer Scientist Aaron Clauset says military leaders frequently underestimate the ultimate length and size of a war. Clauset offers a new way to measure wars, not just by counting deaths at a war’s end –...

Forests Vanishing in Wake of Megafires (start time: 7:55) Increasingly large and hot wildfires are turning many conifer-dominated forests in the western U.S.and Canada into shrublands or grasslands, largely by making it...

Teaching through screens is part of getting kids ready for the digital world. But when do tech and screens help students and when do they get in the way? CU-Boulder Journalism Student Juliana Krigsman explores these...

Climate “hushing” (start time: 5:41) Since President Trump began his second term as president in January, 2025, his administration, at a dizzying pace, has attacked climate change as a Democratic elite “hoax” and gutted...

In her new book, The Power of the Pause: 90 Seconds to Calm, Reset, and Reconnect, Jillian Pransky teaches readers how a brief 90-second break can help regulate the nervous system and stop automatic, reactive habits...

A heart attack forced Boulder community leader and journalist Sam Fuqua to need emergency care. While being wheeled into the operating room, Sam hoped to soothe his anxiety by hearing some favorite music. His hope had...

Colorado River Water (starts 1:00) Steep cuts are ahead in the use of Colorado River water by Arizona and California. But what about Colorado? For answers, we talk with CU-Boulder’s Doug Kenney, water law expert and...

What is a wilderness, really? Here in the US we think of it as undeveloped land, put aside to appreciate its beauty and remoteness. In other lands and cultures, wilderness is a powerful, ancient concept, at the...

Gardens are popping up everywhere, from community plots to elementary school yards to vertical plantings. A unique approach proposed by award winning British landscaper, Harry Holding, is integrating the edible aspect...

Microplastics: Health Concerns, Solutions (start time: 6:02) The Environmental Protection Agency recently issued a new rule related to monitoring 30 unregulated chemicals in drinking water that could pose human health...

Poking the Squid – Good Reads calls author and illustrator Perrin Roosevelt Ireland’s new book a brilliantly funny, beautifully illustrated graphic nonfiction book that shatters our puritanical and binary notions of...

Parenting Across the Animal Kingdom (start time: 5:02) As humans, we tend to think that we raise our children with more care than any other animal on the planet. After all, human kids depend on their parents on average...

Global conflicts are revealing vulnerabilities in the global reliance on imported fossil fuels and centralized power. Energy Analyst Kyle Datta says energy security needs may speed the adoption of renewables and “as a...

Complex Animal Networks (start time: 7:17) As humans, we’re all familiar with, as we live in and are members of, nations. But most of us don’t think of non-human species, be they tiny ants or beavers or bears, in this...

Climate Change & Action: From the Arctic to Colorado (start time: 2:33) Twenty years ago the Academy-winning documentary An Inconvenient Truth was released in theaters nationwide. It sparked millions of people to ask...