The world is awash with artificial lights – so much so that most of us never experience the night sky like our ancestors did. So what? Does it matter? Is it simply an inevitable and acceptable result of progress? Here in the studio with us today to talk about the personal and global effects of light pollution and the loss of dark skies at night is Paul Bogard who has written the book The End of Night. Searching for Natural Darkness in an Age of Artificial Light,
Hosts: Joel Parker, Shelley Schlender
Producer: Shelley Schlender
Engineer: Joel Parker
Executive Producer: Susan Moran
Podcast: Play in new window | Download (Duration: 25:03 — 25.2MB)
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Good & Bad Calories (starts at 4:50) Ever since the 1970s, the rise of obesity in the United States has an epidemic. Researchers around the world are trying desperately to figure out why so many of us get fat, and what we can do to change that. A large amount of funding, and support from public health policy, goes toward the hypothesis that we get fat because we eat too many calories and do not exercise enough; when someone eats more calories than they need, the instructions go, they should exercise. That’s “Calories in, Calories Out.” But recently, an expert with a different point of view spoke to a packed audience of doctors, staff and medical students at the University of Colorado Medical Center. The expert is 
Feature #1 – China’s Environmental Impact (start time 4:46): China’s meteoric economic rise is causing harmful side effects, ranging from choking air pollution domestically to threatened forests, wildlife and air quality around the globe. Of course China’s per capita greenhouse gas emissions still pale in comparison to those in the United States, and roughly one-third of China’s CO2 emissions are generated to manufacture goods that are exported to the U.S. and other nations. Craig Simons, a former journalist and author of a recently published book, 
Feature #2 – 100 Year Starship (start time 15:35): Science and exploration tend to be long-term commitments. That’s well-known by fans of the “Hitchhiker’s Guide to The Galaxy” series, where the computer Deep Thought did calculations for 7.5 million years to find the answer to The Ultimate Question of Life, the Universe, and everything. However, projects on our world tend to be limited by shorter-term political and funding cycles. So it is hard enough to consider projects that require thinking a decade into the future, beyond many political lifetimes. What about projects that require thinking a century or more into the future, many generations from now? Well, that is exactly what one group of space exploration advocates is working toward. The project is called the 
Brain Trust (starts at 4:23) When you are trying to make a decision about something important or having a disagreement with someone, don’t you sometimes wish you had a scientist with you – a world expert on the topic at hand – to help you out? In fact, it would be great to have dozens of experts in many fields available, sort of your own personal Brain Trust. Well, luckily 
Drought (starts at 15:10) Given all the rain and snow on the Front Range and beyond lately, you’d think that Colorado is emerging from the persistent drought, right? But last year was one of the hottest and driest on record in the state and some regions have yet to recover. Among those who have suffered the most from the persistent drought are farmers and ranchers. In fact, some have sold off cattle and even shuttered their businesses. That said, high prices have boosted profits for some wheat farmers, for instance. To find out just how badly many farmers and ranchers have been hit by the drought, researchers at Colorado State University have been surveying them annually for a while. Host Susan Moran talks with Christopher Goemans, a resource economist in the 