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. 

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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.

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The harvesting of wood to meet the heating and cooking demands for billions of people worldwide has less of an impact on global forest loss and carbon dioxide (CO2) emissions than previously believed, according to a new Yale-led study. Writing in the journal Nature Climate Change, a team of researchers, including Prof. Robert Bailis of the Yale School of Forestry & Environmental Studies (F&ES), concludes that only about 27 to 34 percent of wood fuel harvested worldwide would be considered “unsustainable.” According to the assessment, “sustainability” is based on whether or not annual harvesting exceeds incremental re-growth.

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In a long-term field study, U.S. Geological Survey (USGS) and Virginia Tech scientists have found that changes in geochemistry from the natural breakdown of petroleum hydrocarbons underground can promote the chemical release (mobilization) of naturally occurring arsenic into groundwater. This geochemical change can result in potentially significant arsenic groundwater contamination. 

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When it comes to electric vehicles, we hear plenty about electric cars being launched into the consumer market but not too much about commercial vehicles. Maybe that’s because not too many people have to concern themselves with what type of delivery or garbage truck they are going to buy next. Nevertheless, such considerations matter, since the electrification of commercial fleets promises considerably larger efficiency gains than cars.

Four-year-old California company Wrightspeed, started by Tesla co-founder Ian Wright, has developed a technology that zeros in on a specific niche of the commercial fleet market, bringing both fuel savings and emissions mitigation for commercial fleet operators.

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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.

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