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Rosetta Comet releasing more water as it gets closer to the Sun
January 27, 2015 08:41 AM - Jet Propulsion Laboratory
There has been a significant increase in the amount of water "pouring" out of comet 67P/Churyumov-Gerasimenko, the comet on which the Rosetta mission's Philae lander touched down in November 2014.
The 2.5-mile-wide (4-kilometer) comet was releasing the earthly equivalent of 40 ounces (1.2 liters) of water into space every second at the end of August 2014. The observations were made by NASA's Microwave Instrument for Rosetta Orbiter (MIRO), aboard the European Space Agency's Rosetta spacecraft. Science results from the MIRO team were released today as part of a special Rosetta-related issue of the journal Science.
Research shows loss of pollinators increases risk of malnutrition and disease
January 27, 2015 08:15 AM - Joshua E. Brown, University of Vermont
A new study shows that more than half the people in some developing countries could become newly at risk for malnutrition if crop-pollinating animals — like bees — continue to decline. Despite popular reports that pollinators are crucial for human nutritional health, no scientific studies have actually tested this claim — until now. The new research by scientists at the University of Vermont and Harvard University has, for the first time, connected what people actually eat in four developing countries to the pollination requirements of the crops that provide their food and nutrients.
ENN Announces Release of New Mobile App!
January 26, 2015 08:39 AM - ENN Editor
This week ENN launches a new mobile app making it easier for you to connect with us and stay up to date with groundbreaking environmental news. The Environmental News Network (ENN) is recognized as the most comprehensive and dependable online environmental news source. With almost twenty years of experience aggregating and producing original content for environmental experts and novices alike, ENN's mission is to inform, educate and inspire environmental discussion and action among its readers and contributors.
Because ENN recognizes that there is no lack of environmental news content but rather an overabundance of it, ENN gathers, filters and streamlines environmental news from affiliate networks and other news streams so as to consolidate and support better environmental decisions for an ever changing world. ENN’s core sources include major wire services, research institutions, and freelance and citizen journalists from around the world.
Click to the rest of the story for downlad links, or visit the App store on your iPhone. Android version comming soon!
Missouri River Sturgeon need more oxygen to reproduce. Dead zones, dams implicated.
January 24, 2015 08:32 AM - USGS
Pallid sturgeon come from a genetic line that has lived on this planet for tens of millions of years; yet it has been decades since anyone has documented any of the enormous fish successfully producing young that survive to adulthood in the upper Missouri River basin.
Now, fisheries scientists with the U.S. Geological Survey, Montana State University and the U.S. Fish and Wildlife Service have shown why, detailing for the first time the biological mechanism that has caused the long decline of pallid sturgeon in the Missouri River and led to its being placed on the endangered species list 25 years ago.
In a paper published this week in the journal Fisheries, the scientists show that oxygen-depleted dead zones between dams in the upper Missouri River are directly linked with the failure of endangered pallid sturgeon hatched embryos to survive to adulthood.
The Large Binocular Telescope Interferometer sets its sights on habitable planets
January 21, 2015 05:53 PM - JPL/California Institute of Technology
The NASA-funded Large Binocular Telescope Interferometer, or LBTI, has completed its first study of dust in the "habitable zone" around a star, opening a new door to finding planets like Earth. Dust is a natural byproduct of the planet-formation process, but too much of it can block our view of planets.
The findings will help in the design of future space missions that have the goal of taking pictures of planets similar to Earth, called exo-Earths.
"Kepler told us how common Earth-like planets are," said Phil Hinz, the principal investigator of the LBTI project at the University of Arizona, Tucson, referring to NASA's planet-hunting Kepler mission, which has identified more than 4,000 planetary candidates around stars. "Now we want to find out just how dusty and obscured planetary environments are, and how difficult the planets will be to image."
Why Certification is Critical for the Industrialization of Bamboo
January 19, 2015 12:35 PM - Contributing editor
We’ve been down this path before; a new species, a new crop, a new product. A silver bullet plant that can be grown on degraded land and provide exactly what industry needs. And yet typically such plants go one of two ways; the way of Jatropha, which after a few years of being touted as the miracle plant of the biofuel industry, simply faded into nothingness; or the way of oil palm, where industrialization boomed, and with it came a mile wide trench of environmental devastation.
No plant is inherently green. And bamboo is no different. It can be grown well, and sustainably. Or it can be the cause of deforestation, conversion of natural ecosystems, and subsequent environmental and social degradation.
So why is bamboo forging a path that is likely to be different? Simply, the foremost player currently responsible for the plant’s industrialization at a global and commercial scale is setting a benchmark of sustainability in front as they pioneer and grow the plant at scale, rather than in their wake as an after thought.
How does rain cause that earthy odor?
January 14, 2015 07:14 AM - Jennifer Chu | MIT News Office
Ever notice an earthy smell in the air after a light rain? Now scientists at MIT believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment.
Using high-speed cameras, the researchers observed that when a raindrop hits a porous surface, it traps tiny air bubbles at the point of contact. As in a glass of champagne, the bubbles then shoot upward, ultimately bursting from the drop in a fizz of aerosols.
The team was also able to predict the amount of aerosols released, based on the velocity of the raindrop and the permeability of the contact surface.
Wave Energy looks very favorable from a cost standpoint
January 8, 2015 06:59 AM - Ted Brekken, Oregon State University
A new analysis suggests that large-scale wave energy systems developed in the Pacific Northwest should be comparatively steady, dependable and able to be integrated into the overall energy grid at lower costs than some other forms of alternative energy, including wind power.
The findings, published in the journal Renewable Energy, confirm what scientists have expected – that wave energy will have fewer problems with variability than some energy sources and that by balancing wave energy production over a larger geographic area, the variability can be even further reduced.
Warming streams contribute to warming Chesapeake Bay
December 8, 2014 09:19 AM - US Geological Survey
The majority of streams in the Chesapeake Bay region are warming, and that increase appears to be driven largely by rising air temperatures. These findings are based on new U.S. Geological Survey research published in the journal Climatic Change.
Researchers found an overall warming trend in air temperature of 0.023 C (0.041 F) per year, and in water temperature of 0.028 C (0.050 F) per year over 51 years. This means that air temperature has risen 1.1 C (1.98 F), and water temperature has risen 1.4 C (2.52 F) between 1960 and 2010 in the Chesapeake Bay region.
O Christmas Tree, O Christmas Tree
December 3, 2014 10:18 AM - Allison Winter, ENN
The tradition of the Capitol Christmas Tree, or The People’s Tree, began in 1964 when Speaker of the U.S. House of Representatives John W. McCormack (D-MA) placed a live Christmas tree on the Capitol lawn. This tree lived three years before succumbing to wind and root damage. In 1970, the Capitol Architect asked the U.S. Forest Service to provide a Christmas tree. Since then, a different national forest has been chosen each year to provide The People’s Tree. This national forest also works with state forests to provide companion trees that are smaller Christmas trees for offices in Washington, D.C.
This year, the 88-foot-tall white spruce tree was harvested from the Chippewa National Forest in northeastern Minnesota by Jim Scheff who won the Logger of the Year award from the Sustainable Forestry Initiative Inc. (SFI).
That begs the question how can a logger win an award from a sustainability group?