KGNU - How On Earth

Noah Fierer We explore the world microbes, and how they’re everywhere, and how the University of Colorado at Boulder has scientists such as Noah Fierer who are trying to track all those microbes down and figure out which ones help us and which ones don’t, and how they interact.  These scientists have studied the microbes on a human hand, the microbes in the air from dog feces, and they’re lastest project is known as Miasma.  That stands for Mapping and Integrated Analysis of Microbes in the Atmosphere. Hosts: Ted Burnham and Breanna Draxler Producer: Shelley Schlender Engineer: Shelley Schlender Headlines: Tom Yulsman Executive Producer: Susan Moran

“Empire of the Beetle” by Andrew Nikiforuk Feature #1: If you live on the Front Range, or just about anywhere else in Colorado, you don’t have to go far to notice huge swaths of rusty brown that have replaced green conifer forests. By now, many people are familiar at least with the devastating effects of the mountain pine beetle. But far fewer may understand just how these voracious insects actually make their living, or that this epidemic — and its causes and triggers — are far more nuanced, and controversial, than meets the eye.  How On Earth co-host Susan Moran talks with Canadian journalist Andrew Nikiforuk about the beetles that have been gorging with impunity on lodgepole pine, spruce and other forests from British Columbia down nearly to Mexico. His new book is called The Empire of the Beetle: How Human Folly and a Tiny Bug Are Killing North America’s Great Forests.Previously, he wrote a best-selling book called Tar Sands. “Demon Fish” by Juliet Eilperin Feature #2:  Sharks have a special place in the human psyche.  Perhaps it is a combination of the mystery of the depths of the ocean and natural fear and awe of powerful beasts that can kill humans with a single bite.  But these predators also are key players in the ocean’s ecosystem. The science and legends of sharks are the subject of a new book called “Demon Fish: Travels Through the Hidden World of Sharks” by Juliet Eilperin, the environmental science and policy reporter for The Washington Post.  How On Earth’s Joel Parker talks with Juliet about her book. Listen to the extended interview here. Hosts: Susan Moran and Joel Parker Producer: Susan Moran Engineer: Joel Parker

In today’s show take a look at the future of wind energy. We have with us in the studio Sandy Butterfield. Sandy is the CEO and co-founder of Boulder Wind Power. Prior to his starting this venture, Sandy spent over 24 years at the National Renewable Energy Laboratory’s National Wind Test Center. Co-hosts: Tom McKinnon and Joel Parker Engineer: Joel Parker Executive Producer: Susan Moran Show Producer: Joel Parker

We look at the strange rise in autoimmune diseases, allergies and asthma, with experts from the University of Chicago Celiac Disease Center and with National Jewish Health Immunlogist Andy Liu  in Denver.  And, we explore whether genetically modified crops might be increasing our chance of getting ill, with Agricultural Scientist, Charles Benbrook of The Organic Center. In this report, Shelley Schlender takes a look at genetically modified crops and other modern farming techniques, and how they might, or might not be, connected to the dramatic rise in immune disorders.  As part of this report, she’ll look into the strange case of a bacteria in GM corn that was NOT supposed to get into human bloodstream.  Recent research indicates that it does.  And she’ll discuss the hygiene hypothesis with  health experts who suggest that our society has become so “clean” that, in some ways, it makes us sick. Go here for extended interviews with Charles Benbrook, Andy Liu, Carol Shilson, Stefano Guandalini. Co-hosts: Susan Moran and Joel Parker Engineer: Tom McKinnon Executive Producer: Susan Moran Show Producer: Shelley Schlender

On today’s show we offer two interview features. Feature #1: Gulf of Mexico hypoxic zone, caused by excess nutrients, mainly nitrogen from fertilizer Last week the Environmental Protection Agency published a seminal report about nitrogen, which is an enormous environmental and public health problem that some scientists put on par with the carbon imbalance. Nitrogen is essential for all life, including ours, but excess nitrogen in the environment is turning out to be a predicament of crisis proportions. It kills fish, creates “dead zones” in places like the Gulf of Mexico, contaminates drinking water, and causes human illnesses. Co-host Susan Moran interviews Dr. Hans Paerl, who has served on the EPA science advisory board and co-authored the report.   He’s a professor of Marine and Environmental Sciences, at the UNC-Chapel Hill Institute of Marine Sciences. Tesla Roadster Feature #2: Our reliance on petroleum-fueled vehicles can be blamed, at least in part for a wide range of problems we face today, from local air pollution to global warming, the balance of payments deficit to political instability on a global scale.  One possible solution is to shift from a reliance on gasoline to the use of electricity for transportation.  Co-host Tom McKinnon interviews John Gartner, a senior analyst at Pike Research in Boulder, to discuss the electric vehicle outlook in the U.S. Hosts: Susan Moran, Tom McKinnon Producer: Susan Moran Engineer: Ted Burnham