Tag Archives: colorado

Too Hot to Exercise? New Research Links Obesity to Temperature and Humidity

AUSTIN, Texas — If you live in the South and have trouble exercising during the muggy summer months, you’re not alone. New research by researchers at The University of Texas at Austin has found that adults are less physically active — and more obese — in counties where summers are hot, especially if they are also humid or rainy.

The new study, which appears in the American Journal of Public Health, also found that adults are less active and more obese in counties where winters are especially cold, cloudy and dark. (more…)

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Erstes weltweites Gletscherinventar erstellt

Was bisher nur für wenige Gebiete galt, ist jetzt für alle Gletscherregionen der Erde bekannt: „Endlich wissen wir, wie viele Gletscher es auf der Erde gibt, wo sie sich befinden, wie groß sie sind und wie viel Eis in ihnen gespeichert ist“, sagt der Glaziologe Georg Kaser über das von ihm mitinitiierte globale Gletscherinventar.

Eine große internationale Gruppe von Wissenschaftlerinnen und Wissenschaftlern hat so gut wie alle Gletscher auf der Erde kartiert und in computerlesbare Form im Randolph Gletscher Inventar (RGI) zur Verfügung gestellt. Dank dieser Anstrengungen ist es für Glaziologen nun möglich, mit bisher nicht erreichter Genauigkeit die Auswirkungen des Klimawandels auf jeden einzelnen Gletscher weltweit zu berechnen. Insgesamt bedecken die rund 200.000 Gletscher der Erde (ohne die Eischilde Grönlands und der Antarktis) eine Fläche von etwa 730.000 km2 und haben ein Volumen von rund 170.000 km3. „Damit wurde die genaue Modellierung der Gletscherreaktion auf Klimaänderungen stark verbessert“ sagt Georg Kaser vom Institut für Meteorologie und Geophysik der Universität Innsbruck. (more…)

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App Offers Flurry of Exciting Features for Skiers

Winter Ski & Ride app for Windows Phone helps you plan ultimate outings, keep track of your friends on the slopes, and beat your personal best.

REDMOND, Wash. – Winter Ski & Ride, a new Windows Phone app in the Nokia Collection, is taking skiing and snowboarding to a new altitude.

Say you’re riding a ski lift to the top of a snow-covered mountain, be it in Colorado, Canada or China. You touch the screen of your Nokia device, with frosty, gloved hands, and pass the lift time by looking at your stats. How many runs have you done? What was your top speed? You look at your contacts, and note what friends are still on the mountain. You decide to ski a mogul-heavy double black diamond run next, and watch a short video by a professional instructor to brush up on your bump skills. (more…)

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JILA Physicists Achieve Elusive ‘Evaporative Cooling’ of Molecules

Achieving a goal considered nearly impossible, JILA physicists have chilled a gas of molecules to very low temperatures by adapting the familiar process by which a hot cup of coffee cools.

JILA is a joint institute of the University of Colorado Boulder and the National Institute of Standards and Technology located on the CU-Boulder campus. (more…)

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Rise in Teen Marijuana Use Stalls, Use of Synthetic Marijuana and ‘Bath Salts’ is Very Low

ANN ARBOR — National samples of 45,000 to 50,000 students in three grades (8, 10, and 12) have been surveyed every year since 1991 as part of the nationwide Monitoring the Future study. Among the most important findings from this year’s survey of U.S. secondary school students are the following:

Marijuana. After four straight years of increasing use among teens, annual marijuana use showed no further increase in any of the three grades surveyed in 2012. The 2012 annual prevalence rates (i.e., percent using in the prior 12 months) were 11%, 28%, and 36% for 8th, 10th, and 12th graders, respectively. (Among the 8th graders there was a modest decline across the past two years—from 13.7% in 2010 to 11.4% in 2012—that reached statistical significance.) (more…)

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Fire and Ice: Wildfires Darkening Greenland Snowpack, Increasing Melting

SAN FRANCISCO — Satellite observations have revealed the first direct evidence of smoke from Arctic wildfires drifting over the Greenland ice sheet, tarnishing the ice with soot and making it more likely to melt under the sun.

At the American Geophysical Union meeting this week, an Ohio State University researcher presented images from NASA’s Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite, which captured smoke from Arctic fires billowing out over Greenland during the summer of 2012. (more…)

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Massive Crevasses and Bendable Ice affect Stability of Antarctic Ice Shelf, CU-Boulder Research Team Finds

Gaping crevasses that penetrate upward from the bottom of the largest remaining ice shelf on the Antarctic Peninsula make it more susceptible to collapse, according to University of Colorado Boulder researchers who spent the last four Southern Hemisphere summers studying the massive floating sheet of ice that covers an area twice the size of Massachusetts.

But the scientists also found that ribbons running through the Larsen C Ice Shelf – made up of a mixture of ice types that, together, are more prone to bending than breaking – make the shelf more resilient than it otherwise would be. (more…)

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‘Fiscal cliff’ challenge explored in ‘Congress and the Politics of Problem Solving’

John Wilkerson, University of Washington professor of political science, is the co-author with E. Scott Adler of the University of Colorado of a new book titled “Congress and the Politics of Problem Solving,” published in December by Cambridge University Press. Wilkerson answered a few questions about the book for UW Today.

Q: What is the central concept behind your new book?

A: We argue that members of Congress care about solving problems in society and that their electoral success partly depends upon their collective performance as a problem solving institution.

Q: You and your co-author state in press notes that your book “offers a glass half-full rather than a glass half-empty perspective on lawmaking.” Can you explain?

Understandably, the media, scholars and the public tend to be more attentive to political conflict (especially partisan conflict) than to political cooperation. Yet on most issues, including the most important issues, consensus and cooperation are the norm within Congress. (more…)

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