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What Lake Tahoe tells us about a changing climate
March 13, 2015 07:37 AM - University of Hawaii.

A recently published study on how natural and man-made sources of nitrogen are recycled through the Lake Tahoe ecosystem provides new information on how global change may affect the iconic blue lake.

“High-elevation lakes, such as Lake Tahoe, are sentinels of climate change,” said Lihini Aluwihare, associate professor of geosciences at Scripps Institution of Oceanography (SIO) at UC San Diego and co-author of the study. “Small changes in the lake's chemistry can have big impacts on the entire ecosystem.”

Lake Tahoe's nitrogen concentration is one of several factors that helps maintain its crystal clear waters. To keep Tahoe blue in the future, the researchers say it's important to keep a close eye on the nitrogen balance in the ecosystem over time.

Princeton University geologists mapping the Earth's mantle in 3D
March 12, 2015 02:04 PM - Catherine Zandonella, Office of the Dean for Research, Princeton University

When a 7.9-magnitude earthquake struck central China's Sichuan province in 2008, seismic waves rippled through the region, toppling apartment houses in the city of Chengdu and swaying office buildings 1,000 miles away in Shanghai.

Though destructive, earthquakes provide benefit in one respect: they help researchers learn about the structure of the Earth, which in turn could lead to more accurate predictions of damage from future quakes and volcanic activity. By eavesdropping on the seismic vibrations of quakes as they rumble through the Earth, researchers can detect the existence of structures such as mineral deposits, subterranean lakes, and upwellings of magma. Thanks to a growing earthquake detection network and superfast computers, geoscientists are now able to explore the Earth's interior, a region that has been more inaccessible than the deepest ocean or the farthest planet in our solar system. 

Bristol University sheds new light on early terrestrial vertebrate
March 12, 2015 06:54 AM - University of Bristol

The first 3D reconstruction of the skull of a 360 million-year-old near-ancestor of land vertebrates has been created by scientists from the Universities of Bristol and Cambridge. 

The 3D skull, which differs from earlier 2D reconstructions, suggests such creatures, which lived their lives primarily in shallow water environments, were more like modern crocodiles than previously thought. 

Saturn's moon Enceladus is spewing tiny silica grains, new study finds
March 11, 2015 04:28 PM - Universtiy of Colorado

A new study by a team of Cassini mission scientists led by the University of Colorado Boulder have found that microscopic grains of rock detected near Saturn imply hydrothermal activity is taking place within the moon Enceladus.

The grains are the first clear indication of an icy moon having hydrothermal activity, in which seawater infiltrates and reacts with a rocky crust, emerging as a heated, mineral-laden solution. The finding adds to the tantalizing possibility that Enceladus, one of at least 60 Saturn moons or moonlets and which displays remarkable geologic activity including geysers, could contain environments suitable for living organisms.

Warm Winter in Pacific Northwest means less snowpack and water worries
March 11, 2015 07:42 AM - Oregon State University

If it seemed like Oregon has had a lot of unseasonably warm days this winter, well, it’s because we have. Now the focus is on a very low snowpack – and the implications that may have later this year.

The meteorological winter – which is comprised of December, January and February – recently wrapped up and depending on where you live in Oregon, it was one of the warmest – if not the warmest – winters on record.

Tobacco smoke impacts the unborn too
March 8, 2015 08:55 AM - THE ENDOCRINE SOCIETY via EurekAlert.

A fetus exposed to tobacco smoke may be at increased risk for diabetes in adulthood, a new study of adult daughters finds. The results will be presented in a poster Saturday, March 7, at ENDO 2015, the annual meeting of the Endocrine Society in San Diego. 

Women whose parents smoked during pregnancy had increased risk of diabetes mellitus independent of known risk factors, adding to the evidence that prenatal environmental chemical exposures can contribute to adult diabetes mellitus. 

Using satellites to monitor forest health
February 28, 2015 07:12 AM - Oregon State University

Scientists for the first time have simultaneously compared widespread impacts from two of the most common forest insects in the West – mountain pine beetle and western spruce budworm – an advance that could lead to more effective management policies.

By combining data from satellites, airplanes and ground-based crews, the researchers have shown in unprecedented detail how insects affect Western forests over decades.

In the past, forest managers relied on airplane surveys to evaluate insect damage over broad areas.

The miracle drink: Coffee!
February 27, 2015 07:56 AM - AMERICAN ACADEMY OF NEUROLOGY via EurekAlert

Drinking coffee may be associated with a lower risk of developing multiple sclerosis (MS), according to a study released today that will be presented at the American Academy of Neurology's 67th Annual Meeting in Washington, DC, April 18 to 25, 2015. 

"Caffeine intake has been associated with a reduced risk of Parkinson's and Alzheimer's diseases, and our study shows that coffee intake may also protect against MS, supporting the idea that the drug may have protective effects for the brain," said study author Ellen Mowry, MD, MCR, with Johns Hopkins University School of Medicine in Baltimore and a member of the American Academy of Neurology. 

Risk of death from smoking higher than thought
February 24, 2015 06:57 AM - SAX INSTITUTE via EurekAlert

A large Australian study of more than 200,000 people has provided independent confirmation that up to two in every three smokers will die from their habit if they continue to smoke.

The research, published today in the international journal BMC Medicine, is the first evidence from a broad cross-section of the population to show the smoking-related death toll is as high as two thirds. 

ENN Releases App for Android Users
February 23, 2015 09:14 AM - ENN Editor

Last month ENN launched a new mobile app available at the iTunes store making it easier for you to connect with us and stay up to date with groundbreaking environmental news. Now, ENN releases the mobile app at Google Play, making it compatible for Android users.

ENN is more than just a gatherer of environmental news but rather a unique set of resources, archives, tools, and experts for the increasingly complex field of environmental science attracting readers from all levels of government, business and academia.

We also encourage you to join the conversation by checking out our Community Blog and by connecting with us on Facebook.

Apple users can download the app at the iTunes store.

Android users can download the app at Google Play.

Make sure you click on the app with the logo shown here.

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