Kgnu - How On Earth

  Headlines: Ice Core Studies How Flu Multiplies Wednesday's Mini-STEM school features Diana Tomback.  Her topic will be: Evolution and the Origin of Life. Features: (5:20 into the show) Shelley Schlender visits the Visindi Circus to learn why some scientists by day become circus performers at night, and how science adds a whole new dimension to circus performances. (13:00 into the show) Chip Grandits talks with Brian Hynek, for the CU Center for Astrobiology and makes this request:  there are ~17 Billion Earth like planets in the Milky Way according to late-breaking estimates; so in this 10 minute segment, we can just go through the list - Mark will have about 35 ns for each planet to go over the prospects of finding life there. Hosts: Chip Grandits and Jim Pullen Producer: Shelley Schlender Engineer: Shelley Schlender Executive Producer: Shelley Schlender Additional Contributions: Rabah Kamal

  Headlines: New CU Studies on GroundLevel Ozone, with NOAA's Sam Oltmans, CU researcher Daven Henze and NASA’s Kevin Bowman Good Cholesterol, Bad Cholesterol and "Ugly" Cholesterol Tonight's Denver Cafe Sci features Tad Pfeffer:  Getting sea level predictions right Features: We look at a new study where researchers, led by Jayne Danska transferred gut microbes from male mice to young female mouse pups, and in the process, raised the testosterone level in the female mice and protected them from getting Type 1 Diabetes.  Danska's research team includes Daniel Frank   at University of Colorado School of Medicine in Aurora, and Chuck Robertson at CU Boulder. And we look at a new kind of science, offered in The American Gut project, featuring CU scientist Rob Knight. Hosts: Joel Parker and Jim Pullen Producer: Shelley Schlender Engineer: Shelley Schlender Executive Producer: Shelley Schlender

Feature #1: (start time: 06:03) On January 12, 2010, just over three years ago, a magnitude 7 earthquake shook Haiti, taking more than 200,000 lives and displacing an estimated 2 million. Still today, the International Organization for Migration estimates hundreds of thousands of people are without permanent homes, and in many ways Haiti seems no closer to rebuilding than it did three years ago.  Co-host Beth Bartel speaks to Haiti's first seismologists -- Roby Douilly and Steeve Symithe, both graduate students at Purdue University -- about the future of Haiti and a career in seismology there Feature #2: (start time: 15:42) You’ve probably heard by now that 2012 was the warmest ever in the U.S.  We’re not the only ones overheating. At the bottom of the world, over the last 50 years, West Antarctica has warmed more than scientists had thought. The implications are huge; an enormous ice sheet there  may be at risk of long-term collapse, which could cause sea levels to rise alarmingly.  Co-host Susan Moran spea

HEADLINES: Diabetes Drug Metformin - University of Pennsylvania Researcher Morris Birnbaum reports in Nature that Metformin blocks a hormone that tells the liver to melt muscle to make more blood sugar. (Go here for an extended interview with Morris Birnbaum) Climate Change - Research shows that timely political action has a bigger impact than waiting. Boulder Cafe Scientifique - Tonight's Cafe Sci features CU Boulder researcher Monique LeBourgeois (who we interviewed in detail in previous broadcast) on the topic of kids and sleep. MAIN FEATURES: We talk with scientists who are part of two new University of Colorado - Denver studies about alcohol and marijuana - 1) Ben Crost presents a study of marijuana use versus alcohol use which concludes that the minimum drinking age of 21 increases marijuana use among teens (until age 21, alcohol use is lower and marijuana use is higher.  After age 21, alcohol use goes up and marijuana use goes down).  Daniel Rees and Mark Anderson are among the authors on a

This is an extended version of the January 8th, 2013 interview with Morris Birnbaum, about how Metformin lowers blood sugars in diabetics by blocking the hormone glucagon.

This is an extended version of the interview we broadcast on January 8th, 2013, featuring Ron Rosedale discussing the new study about BMI and Longevity.

This is an extended interview with University of Montana Economist Mark Anderson, from the January 8th How On Earth broadcast.

This is an extended interview from the January 8th, 2013 HowonEarth.

Feature #1: (start time 5:09)  Did you know that Colorado, and for that matter most states, have their own “state climatologist” – an expert who keeps tabs on the changing climate and its impacts in the state. In Colorado's case it's Nolan Doesken. He’s based out of the Colorado Climate Center at Colorado State University. Mr. Doesken also heads a nationwide citizen-science project called the  Community Collaborative Rain, Hail and Snow Network. How On Earth co-host Susan Moran interviews Mr. Doesken about the network, as well as a recently released Colorado River Basin Water Supply & Demand Study, which suggests we'll be thirstier and thirstier in the future. Feature #2: (start time 16:00) Water is such an essential -- perhaps the essential -- resource for life that it is considered as a key ingredient for life anywhere in the universe. No surprise, then, that it has become a battleground, especially in the Western states like Colorado that are dealing with drought conditions and higher demand for clean

Main Feature (starts at 5:25). We talk with Dr. Robert Arentz from Ball Aerospace in Boulder about what's new and interesting at Ball and in space missions in general including asteroid impact hazards on Earth and what can be done about it. Hosts: Joel Parker and Jim Pullen Producer: Joel Parker Engineer: Joel Parker Executive Producer: Jim Pullen Listen to the show:

Headlines:   Chemicals that make drinking water cleaner, might increase allergies to food Rumors run amok about "historic" Mars Mission press conference West Nile Virus, Lyme's disease, and Dengue fever on the rise Main feature (6 minutes in):  We’re in that time of year when animals hibernate.  Before they started their long winter’s nap, they fattened up, so they can make it through the winter.  According to CU Health Sciences researcher, Richard Johnson, we humans also evolved to put on weight to make it through leaner times.  But for us, it’s not a change of seasons that gets the weight gain started.  It’s a specific trigger, called, “Sugar.”  Specifically a kind of sugar called fructose, found in honey, fruit juice, corn syrup, and even regular table sugar.  In his new book, The Fat Switch, Johnson traces the increasing availability of this fructose sugar among humans and how it has now made people fat, and sick for thousands of years.  For instance, you think the pharoahs were all buff, and skinny?

We share three new findings that include contributions from Colorado scientists:  1.  Diane McKnight coauthors study about Bacteria that thrive in a frigid hell-hole - the pitch-dark, super-salty, poisonous Lake Vida in Antarctica, 2.  William Colgan offers new ways to calculate a glacier's melting rates, 3.  Alicia Karspeck offers a new weather forecast - Cloudy with a Chance of Flu? (6:00) Then we talk with Jeff Leach, founder of the Human Food Project, which has teamed up with CU researchers who include Rob Knight to create a crowd-sourced, crowd-funded way to learn more about the microbes that live in us and on us.  The new project is called The American Gut.  The deadline to sign up is January 7th. Hosts: Jim Pullen and Tom McKinnon Producer: Shelley Schlender Engineer: Shelley Schlender Executive Producer: Jim Pullen Listen to the show:

Today on How On Earth we speak with Dr. Bernie Krause about how soundscapes can help us understand the health of ecosystems. Dr. Krause has been recording the whole sounds of nature all over the world for 40 years. His new book is The Great Animal Orchestra: Finding the Origins of Music in the World's Wild Places. Hosts: Jim Pullen and Joel Parker Producer: Jim Pullen Engineer: Jim Pullen Additional Contributions: Shelley Schlender and Rabah Kamal Executive Producer: Jim Pullen Listen to the show:

Clean Tech Nation (start time: 4:57): Over the last few years renewable electricity generation has doubled, thanks in part to President Obama’s 2009 stimulus package. In fact, many clean technologies and industries have taken off, including solar, biofuels, green building and electric vehicles. But the stimulus money is about to run out, as is the production tax credit for wind development. To make sense of the current status of and future prospects for clean tech, co-host Susan Moran interviews Clint Wilder, co-author (along with Ron Pernick,) Clean Tech Nation: How the U.S. Can Lead in the New Global Economy. Wilder and Pernick run Clean Edge, a clean-tech research and advisory firm. Feedback in Climate Models (start time: 14:00): We are witnesses to unprecedented changes to the earth. Great storms and melting ice caps. Scientists say these events are related to the carbon we are dumping into the atmosphere. But even the scientists are stunned by the speed and scale of melting sea ice and ice caps and s

Feature #1: The Dust Bowl (start time 6:53) As bad as the drought has been recently in Colorado and other states, it pales in comparison to the nearly 10-year-long drought of the 1930s. Its unrelenting and gargantuan dust storms inspired the name “The Dust Bowl.” In southeast Colorado and other Great Plains states, children died of dust pneumonia. Thousands of cattle died or were slaughtered. Hundreds of thousands of people were forced to flee their homes. It came to be called “the worst man-made ecological disaster in American history.” On November 18th and 19th PBS will air a four-hour documentary called “The Dust Bowl.” It was directed by Ken Burns and written and co-produced by author Dayton Duncan. How On Earth co-host Susan Moran talks with Duncan about the film and the lessons learned --or not learned -- from The Dust Bowl. Feature #2: Zero Population (start time 15:58)  John Seager, CEO of the nonprofit Population Connection, discusses with How On Earth co-host Ted Burnham about the organization's

Last month, CU Nobel Prize Winner Tom Cech (Check) and colleagues announced a breakthrough in their quest to stop cancer.  It involves an enzyme known as telomerase (tell-AH-mer-aze), which helps cells divide almost endlessly - helpful when a child is growing.  In adults, most cells stop responding to telomerase.  Instead they save up a limited number of cell divisions timed to last through old age.  Cancer cells are different.  They are great gobblers of telomerase.  That’s where CU discovery comes in.  It’s a way to possibly prevent cancer cells from tanking up on telomerase.  Cech says that while human trials are years off, the discovery looks promising.  For more, here's How on Earth’s Shelley Schlender, talking with CU Nobel Prize winner, Tom Cech, in an extended version of this interview on cancer:

The Life and Legacy of Rachel Carson (start time 6:20). The book Silent Spring, published in 1962, is widely credited for setting the stage for the modern environmental movement. Its author, Rachel Carson, an unassuming field biologist and writer, uncovered how in the process of killing crop pests, chemicals such as DDT were also killing birds, fish and other wildlife.  Fifty years after Silent Spring was published, several of the worst offending toxins are off the market – at least in the U.S. – but many more persist and new ones have emerged. And they’re wreaking havoc on human health, not just wildlife. How On Earth co-host Susan Moran talks with William Souder, author of the new book On a Farther Shore: The Life and Legacy of Rachel Carson, which was just published last month to mark the 50th anniversary of the release of Silent Spring. Hosts: Susan Moran, Joel Parker Producer: Joel Parker Engineer: Jim Pullen Executive Producer: Jim Pullen Listen to the show:

How can we best live with natural gas development? A University of Colorado team has just been awarded an NSF grant to tackle the problem. Here to chat with us about the study is Dr. Joe Ryan, the lead-PI of the multidisciplinary team. And the lead of the study's air quality task, Dr. Jana Milford, is also with us. Hosts: Jim Pullen and Joel Parker Producer: Jim Pullen Engineer: Jim Pullen Executive Producer: Jim Pullen

This is our 2012 Fall Pledge Drive Show and our subject is Genes Gone Bad, or do you have to be a genetic-mutant superhuman to play Paganini? Helping us answer that question is Boulder's own and world-renowned Dr. Gregory Walker. And in a very special treat, Gregory plays the magnificent Paganini Caprice No. 24, live in KGNU's Kabaret studio. And we hear a bit of an interview with Sam Kean, author of the book, The Violinist's Thumb, which inspired our show. Hosts: Jim Pullen and Joel Parker Producer: Jim Pullen Engineers: Jim Pullen, George Figgs, and Dafe Hughes Executive Producer: Jim Pullen

We talk with Travis Metcalfe, of Boulder's Space Science Institute, where he is searching for Sister Earth and also part of the Blue Dot Project.  As for why, the past two decades have witnessed accelerating progress on one of the most fundamental questions in astronomy: Are we alone in the Universe? Astronomers have already discovered hundreds of planets around distant stars. Some of them are nearly as small as the Earth, and orbit in the "Goldilocks zone" of their parent star where liquid water can exist.   We congratulate Boulder’s David J. Wineland for winning the 2012 Nobel Prize in physics.     Wineland, a physicist at the National Institute of Standards and Technology and CU-Boulder, shares the prize with and Serge Haroche of France.  They are credited with making breakthroughs in quantum physics by showing how to observe individual quantum particles without destroying them.  These, in turn, are the first steps toward building superfast computers based on quantum physics. Hosts: Joel Parker, Beth Ba