Sep
27
2017
Removing nitrate for healthier ecosystems
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Nitrogen can present a dilemma for farmers and land managers.
Sep
27
2017
Climate Change: Some Lessons From the Vikings
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One June day in the year 793, men in ships landed on Lindisfarne, an island off eastern England occupied by a monastery. The men, apparently from the north, plundered treasures, overthrew altars and set fire to buildings. They killed some monks and carried others off in chains; others, they stripped naked and left behind to the mercies of the weather. The attack shocked European Christian society. They came to mark it as the official start of the Viking Age, when Norse raiders ranged as far as the southern Mediterranean and northern Asia, before seemingly fading out some 250 years later.
Sep
27
2017
Large iceberg breaks off Pine Island Glacier
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Latest satellite images reveal a new 100-square-mile iceberg emerging from Antarctica’s Pine Island Glacier. The calving event did not come as a complete surprise, but is a troubling sign with regards to future sea level rise.
Sep
26
2017
Energy technologies get a boost toward commercial use
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Six energy technologies that do everything from protect fish to monitor the health of flow batteries are getting a boost at the Department of Energy's Pacific Northwest National Laboratory.DOE is awarding PNNL nearly $1.5 million to bring six technologies closer to commercial use. The projects were announced today by DOE's Office of Technology Transitions, which selected them for funding from its Technology Commercialization Fund. The technologies show great promise, but need further development to improve their potential use in commercial products or services.
Sep
26
2017
Brain cancer growth halted by absence of protein
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The growth of certain aggressive brain tumors can be halted by cutting off their access to a signaling molecule produced by the brain’s nerve cells, according to a new study by researchers at the Stanford University School of Medicine.
Sep
26
2017
Arctic sea ice at minimum extent for 2017
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Arctic sea ice extent has likely reached its minimum extent for the year, at 4.64 million square kilometers (1.79 million square miles) on September 13, 2017, according to a team of international scientists. The 2017 minimum is the eighth lowest in the 38-year satellite record. The Arctic sea ice minimum marks the day – typically in mid-September – when sea ice reaches its smallest extent at the end of the summer melt season.
Sep
26
2017
Deep waters spiral upward around Antarctica
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Since Captain James Cook’s discovery in the 1770s that water encompassed the Earth’s southern latitudes, oceanographers have been studying the Southern Ocean, its physics, and how it interacts with global water circulation and the climate.
Sep
26
2017
Biochemists discover mechanism that helps flu viruses evolve
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Influenza viruses mutate rapidly, which is why flu vaccines have to be redesigned every year. A new study from MIT sheds light on just how these viruses evolve so quickly, and offers a potential way to slow them down.
Sep
26
2017
Satellite Shows Pilar Reduced to Remnants
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Tropical Depression Pilar weakened to a remnant low pressure area as it continued to crawl north along the west coast of Mexico. Satellite data revealed no circulation center.
Sep
26
2017
NASA Satellite Temperatures Reveal a Stronger Hurricane Lee
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NASA's Aqua satellite peered into Hurricane Lee with infrared light to determine if the storm was intensifying. Infrared data showed cloud top temperatures were getting colder, indicating stronger storms.