Enn Original News
Welding Fumes and Safety
February 11, 2011 02:30 PM - Andy Soos, ENN
A new alloy promises to lessen welders' risk of breathing toxic fumes on the job. The alloy is a welding "consumable" — the material that melts under the welder's torch to fill the gap between parts that are being joined. The new nickel alloy consumable is more expensive compared to those already on the market, but worth the cost in situations where adequate ventilation is a problem. Exposure to welding fumes can cause numerous health problems. When inhaled, welding fumes can enter the lungs, bloodstream, brain nerve cells, spinal cord and other organs and can cause both short- and long-term health effects.
Metal Toxins in LED Products
February 11, 2011 09:20 AM - David A Gabel, ENN
LED lighting is the newest, most efficient form of lighting to hit the markets. It blows away even the most efficient compact fluorescent bulb, and is therefore, a much more expensive option. However, the benefits to the environment from LED's efficiency come with another environmental cost. A new study from the University of California (UC) Irvine shows that LED bulbs contain lead, arsenic, and a dozen more potentially hazardous substances.
Cemex to Pay $1.4 Million for US Clean Air Act Prevention of Significant Deterioration & Operating Permit Violations
February 11, 2011 07:06 AM - Roger Greenway, ENN
Yesterday the U.S. Environmental Protection Agency (EPA) and the U.S. Justice Department announced that Cemex, Inc., one of the largest producers of Portland cement in the United States, has agreed to pay a $1.4 million penalty for Clean Air Act violations at its cement plant in Fairborn, Ohio. In addition to the penalty, Cemex will spend an estimated $2 million on pollution controls that will reduce emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2). "Emissions of harmful pollutants like sulfur dioxide and nitrogen oxides can lead to a number of serious health and environmental problems, including premature death and heart disease," said Cynthia Giles, assistant administrator for EPA's Office of Enforcement and Compliance Assurance. "Today’s settlement will help keep harmful air pollution out of Ohio communities, protect children with asthma and prevent region-wide public health problems."
The Jumping Ability of the Common Flea
February 10, 2011 09:35 AM - David A Gabel, ENN
Fleas, the annoying parasites that are the bane of a dog's existence, are very interesting creatures. They are tiny and have no wings but amazingly have no problems climbing onto the backs of creatures and sometimes on people's heads. This is because of their long hind legs that make the flea perfectly suited for jumping. They can jump 13 inches horizontally, which is 200 times their body length! That is like a human jumping nearly a quarter mile in a single leap. A new study published in the Journal of Experimental Biology unlocks the secret of the flea's amazing jumping ability.
February 10, 2011 08:17 AM - Andy Soos, ENN
Space weather is the concept of changing environmental conditions in near-Earth space. It is distinct from the concept of weather within a planetary atmosphere, and deals with phenomena involving ambient plasma, magnetic fields, radiation and other matter in space. "Space weather" often implicitly means the conditions in near-Earth space within the magnetosphere and ionosphere, but it is also studied in interplanetary (and occasionally interstellar) space. The primary source of these changes is what happens on the Sun. Changes in the near-Earth space environment affect our society. The best known ground-level consequence of space weather is geomagnetically induced currents, or GIC. These are damaging electrical currents that can flow in power grids, pipelines and other conducting networks and cause disruptions and black outs. Eight years ago, the American Meteorological Society tentatively reached out to the space weather community by scheduling a day-and-a-half Space Weather Symposium at its Annual Meeting. That symposium included briefings from operational and research agencies involved with space weather as well as a variety of talks targeting areas of interest common to meteorology and space weather.
Time to Get to Know!
February 9, 2011 10:24 PM - Editor, ENN and Get to Know
The 2011 Canadian Wildlife Federation Robert Bateman Get to Know Contest begins April 10. Renowned wildlife artist Robert Bateman invites youth aged 5-18 to go outside and "get to know" their wild neighbors by creating art, writing, digital photography, and video entries. The goal: to engage the power of art to help youth become more connected with nature. Last year, twenty two winners of the Robert Bateman Get to Know Contest attended the Get to Know Art & Nature Camp at the Waterton-Glacier International Peace Park on August 23-27. Hosted by Parks Canada, the kids took part in workshops (led by local artists from Alberta and Montana), discovered local species and ecosystems, and worked on a video project encouraging young people across North America to enter the new video category of the Get to Know Contest.
Fracking Ground Water
February 9, 2011 05:35 PM - Andy Soos, ENN
Congress commissioned the Environmental Protection Agency to study hydraulic fracturing, or "fracking", after complaints that the process pollutes water. The EPA is slated to make public initial results of the study by the end of next year. Natural gas plays a key role in our nation’s clean energy future and the process known as hydraulic fracturing is one way of accessing that vital resource. Fracturing is used by gas producers to stimulate wells and recover natural gas from sources such as coalbeds and shale gas formations. Fracturing is also used for other applications including oil recovery. The study will investigate reported instances of drinking water contamination in three to five sites across the country where fracking has occurred.
Victory for the Jersey Shore: Governor Vetoes Offshore LNG Port
February 9, 2011 09:20 AM - David A Gabel, ENN
For the past few years, Liberty Natural Gas has been trying to construct an offshore port for the delivery of liquefied natural gas (LNG). The port would be located about 15 miles off the coast of Asbury Park, NJ, and a gas pipeline would be constructed along the sea floor that would deliver an estimated 1.2 cubic feet per day to the region's hungry energy market. However, the project has serious environmental, social, and economic implications which could not be overlooked. The decision has finally been made by Governor Chris Christie: there will be no offshore LNG port off the coast of New Jersey.
February 8, 2011 04:10 PM - Andy Soos, ENN
Thundersnow, also known as a winter thunderstorm or a thunder snowstorm, is a relatively rare kind of thunderstorm with snow falling as the primary precipitation instead of rain. It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone, where the precipitation consists of ice pellets rather than snow. Snowstorms that trigger lightning are rare. Of the roughly 10,000,000 cloud-to-ground lightning flashes observed over the continental United States each year, about 0.1 percent to 0.01 percent are associated with snow, says Walter Petersen, atmospheric physicist with NASA's Marshall Space Flight Center in Huntsville, Alabama. This thundersnow happened this winter in northern Alabama and was observed first hand by sophisticated lightning mapping station in Huntsville
The Dunes of Mars
February 7, 2011 12:41 PM - Andy Soos, ENN
A dune is a hill of sand built by the wind. Dunes occur in different forms and sizes. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter slip face in the lee of the wind. Dunes can be found in any environment where there is a substantial atmosphere, winds, and dust to be blown. Dunes are common on Mars, and they have also been observed in the equatorial regions of Titan. Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, according to research using images from a NASA orbiter. These dune fields cover an area the size of Texas in a band around the planet at the edge of Mars' north polar cap. The new findings suggest they are among the most active landscapes on Mars. However, few changes in these dark-toned dunes had been previously detected before a campaign of repeated imaging by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.