Enn Original News
New Findings on Carbon Dioxide Release from World's Oceans
August 30, 2010 10:16 AM - David A Gabel, ENN
Carbon Dioxide (CO2), a greenhouse gas, is intricately linked to global warming. The largest store of CO2 is the world's oceans. How the oceans sequester or release CO2 to or from the atmosphere is important to understand as mankind alters Earth's climate with the burning of fossil fuels. A new report from researchers at the University of California, Davis offers clues on how that mechanism works by analyzing the shells of plankton fossils.
August 27, 2010 11:36 AM - Andy Soos, ENN
A geomagnetic storm (or solar storm) is a temporary disturbance of the Earth's magnetosphere caused by a massive solar flares or related sun output. A geomagnetic storm is caused by a solar wind shock wave which typically strikes the Earth's magnetic field 3 days after the event on the sun. The effect on the earth can be small or it can be large. Astronomers are predicting that a massive solar storm, much bigger in potential than the one that caused spectacular light shows on Earth earlier this month, will strike our planet in 2012 with a force of 100 million hydrogen bombs. This is far larger than average.
The Amazing Christmas Island Red Crab
August 27, 2010 10:23 AM - David A Gabel, ENN
Every year an amazing event happens on this small island, owned by Australia, which is 220 miles away from the nearest land mass. Christmas Island's geographic isolation and history of limited human disturbance has brought about a high level of species not found elsewhere in the world. Among these species is the Christmas Island Red Crab. Millions of these crabs simultaneously embark on a five kilometer journey to their ocean breeding grounds. Scientists from the University of Bristol and Bangor University believe they have unlocked the mystery to this incredible feat.
The Layers of the Earth
August 26, 2010 02:10 PM - Andy Soos, ENN
The asthenosphere is the highly viscous mechanically weak region of the upper mantle of the Earth on which "float" the continental plates. It lies below the lithosphere, at depths between 60 and 120 miles below the surface, but perhaps extending as deep as 400+ miles. The lithosphere is a complex mixture of layers. For example the North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according to a new study by seismologists at the University of California, Berkeley.
EPA Encourages All to Vote in the Rachel Carson Contest
August 26, 2010 09:41 AM - David A Gabel, ENN
Rachel Carson is widely considered the founder of the modern environmental movement. Through her book, "Silent Spring," she opened the public's eyes to the damages caused by the pesticide DDT. From that point on, society realized they have a much greater influence on the environment than previously thought. Borrowing the title from another one of her books, "The Sense of Wonder," the US Environmental Protection Agency (EPA), is holding its fourth annual Rachel Carson Sense of Wonder Contest.
Alaskan Volcanic Rebirth
August 25, 2010 04:47 PM - Andy Soos, ENN
A secluded island in the Aleutian chain is revealing secrets of how land and marine ecosystems react to and recover from a catastrophic volcanic eruption that at first wiped life off the island. Kasatochi, an island in the Alaska Maritime National Wildlife Refuge rarely studied by scientists before its Aug. 7, 2008, volcanic eruption, is showing signs of recovery.
Artificial Light and Productivity
August 25, 2010 10:38 AM - David A Gabel, ENN
Artificial light has, throughout history, been a powerful force contributing to the quality and productivity of human life. It is so significant to human life that society spends an enormous amount of energy to produce it. Currently, there is new artificial lighting emerging on the market place. These new technologies, in the form of solid-state lighting (SSL), offer the promise of increased productivity without more energy usage, and a higher quality of life.
Mystery of the Oil Plume Solved? Microbes ate it.
August 24, 2010 04:52 PM - Roger Greenway, ENN
What is the real story about the "missing oil". One study shows that most of the oil is gone, while another shows that there is still a whole lot of it in a mid-depth plume not visible from the surface. The answer might have been found in research announced today by Lawrence Berkeley Lab of the US Department of Energy. They found the plume alright, but they also found that microbial activity, spearheaded by a new and unclassified species, degrades oil much faster than anticipated. This degradation appears to take place without a significant level of oxygen depletion. The study notes “Our findings show that the influx of oil profoundly altered the microbial community by significantly stimulating deep-sea psychrophilic (cold temperature) gamma-proteobacteria that are closely related to
August 24, 2010 04:20 PM - Andy Soos. ENN
Ellesmere Island is in the far north of Canada above the Arctic Circle. This is the land of the midnight sun and a rather brisk cold environment. But fifty million years ago it was warmer though still quirky in its day night cycles. A new study of the High Arctic climate roughly 50 million years ago led by the University of Colorado at Boulder helps to explain how ancient alligators and giant tortoises were able to thrive on Ellesmere Island well above the Arctic Circle, even as they endured six months of darkness each year.
Vitamin D Deficiency Linked to a Variety of Diseases
August 24, 2010 10:59 AM - David A Gabel, ENN
Vitamin D is a type of fat-soluble steroid that can take two separate forms, vitamin D2 and D3, whose actual names are Ergocalciferol and Cholecalciferol. It is produced in the skin from exposure to ultraviolet radiation, the sun. This is the primary way to build up vitamin D, but it can also be ingested in foods which naturally contain it or are artificially fortified with it. However, what happens when the human body has a vitamin D deficiency? A new study from Oxford University shows that a lack of sufficient vitamin D in the body can lead to a wide range of diseases.