Enn Original News
July 5, 2011 07:49 AM - Andy Soos, ENN
Kelp has a high rate of growth and its decay is quite efficient in yielding methane, as well as sugars that can be converted to ethanol. It has been proposed that large open-ocean kelp farms could serve as a source of renewable energy. Unlike some biofuels such as corn ethanol, kelp energy avoids "food vs fuel" issues and does not require irrigation. Seaweed may prove a viable future biofuel especially if harvested in summer. However the suitability of its chemical composition varies on a seasonal basis. Harvesting the kelp in July when carbohydrate levels are at their highest would ensure optimal sugar release for biofuel production.
4th of July Parades, Fireworks, and Waste
July 4, 2011 09:48 AM - TIM FAULKNER/ecoRI News staff
It's not the Fourth of July without a parade and fireworks — plus lots of trash and some not-so-healthy toxins and pollutants. Rhode Island prides itself on hosting the oldest parade in the nation. The Bristol tradition draws some 100,000 spectators, who leave behind about 64 tons of trash, according to the Department of Public Works. Progress has been made in recent years to control waste by requiring vendors to haul out their own garbage. Stapling paper yard-waste bags to trees and telephone poles along the parade route also has encouraged spectators to help with the clean up of bottles, cups, balloons and other debris. "We flood the parade route with those bags and it's a huge help," said Jim Sylvester of Bristol's DPW. None of the waste, however, is sorted for recyclables. It's not well known, or at least not well publicized, that fireworks — from sparklers to professional displays — leave behind a fair amount of waste, while releasing noxious gases and heavy metals.
Red Wine and Exercise
July 1, 2011 11:09 AM - Andy Soos, ENN
Wine has its proponents as well its opponents. Long-term spaceflight induces hypokinesia and hypodynamia, which results in a number of significant physiological alterations, such as muscle atrophy, force reduction, insulin resistance, substrate use shift from fats to carbohydrates, and bone loss. Resveratrol, a natural polyphenol, could be used as a nutritional countermeasure to prevent muscle metabolic and bone adaptions according to a new study. A chemical in red wine called resveratrol has been shown to have both cardioprotective and chemoprotective effects in animal studies. Low doses of resveratrol in the diet of middle-aged mice has a widespread influence on the genetic levers of aging and may confer special protection on the heart. Specifically, low doses of resveratrol mimic the effects of what is known as caloric restriction - diets with 20—30 percent fewer calories than a typical diet. Resveratrol is produced naturally by grape skins in response to fungal infection, including exposure to yeast during fermentation. As white wine has minimal contact with grape skins during this process, it generally contains lower levels of the chemical. Other beneficial compounds in wine include other polyphenols, antioxidants, and flavonoids.
Motion Affer Effect
June 30, 2011 02:10 PM - Andy Soos, ENN
The motion after-effect is a visual illusion experienced after viewing a moving visual stimulus for a time (seconds to minutes) with stationary eyes, and then fixating a stationary stimulus. The stationary stimulus appears to move in the opposite direction to the original (physically moving) stimulus. The motion aftereffect is believed to be the result of motion adaptation. For example, if one looks at a waterfall for about a minute and then looks at the stationary rocks at the side of the waterfall, these rocks appear to be moving upwards slightly. The illusory upwards movement is the motion aftereffect. This particular motion aftereffect is also known as the waterfall illusion. Why does it happen, though? Is it because we are consciously aware that the background is moving in one direction, causing our brains to shift their frame of reference so that we can ignore this motion? Or is it an automatic, subconscious response? Davis Glasser, a doctoral student in the University of Rochester's Department of Brain and Cognitive Sciences thinks he has found the answer. The results of a study done by Glasser, along with his advisor, Professor Duje Tadin, and colleagues James Tsui and Christopher Pack of the Montreal Neurological Institute, is published in the journal Proceedings of the National Academy of Sciences. In their paper, the scientists show that humans experience the Motion Aftereffect even if the motion that they see in the background is so brief that they can't even tell whether it is heading to the right or the left.
Diabetes: A Global Epidemic?
June 29, 2011 10:01 AM - David A Gabel, ENN
According to a major international study which analyzed global data on diabetes since 1980, the prevalence of diabetes has gone up or at best remained unchanged in every part of the world for the last 30 years. The number of people with the disease has more than doubled during that period to 347 million adults. The increase can be attributed to population growth, aging, and to an overall higher prevalence.
Cook Inlet Oil
June 29, 2011 08:01 AM - Andy Soos, ENN
Cook Inlet stretches 180 miles from the Gulf of Alaska to Anchorage in south-central Alaska. Cook Inlet branches into the Knik Arm and Turnagain Arm at its northern end, almost surrounding Anchorage. The watershed covers about 100,000 kmÂ² of southern Alaska, east of the Aleutian Range and south of the Alaska Range, receiving water from its tributaries the Knik River, the Little Susitna River, and the Susitna and Matanuska rivers. The watershed includes the drainage areas of Mount McKinley. Within the watershed there are several national parks and the active volcano Mount Redoubt, along with three other historically active volcanoes. Approximately 400,000 people live within the Cook Inlet watershed. Before the growth of Anchorage, Knik was the destination for most marine traffic in upper Cook Inlet. The Cook Inlet Region of Alaska contains an estimated mean of 19 trillion cubic feet of natural gas, about 600 million barrels of oil, and 46 million barrels of natural gas liquids, according to a new assessment by the U.S. Geological Survey (USGS). This estimate is of undiscovered, technically recoverable oil and gas resources, and includes both unconventional and conventional resources. These gas estimates are significantly more than the last USGS assessment of southern Alaska in 1995, in which a mean of 2.14 trillion cubic feet of gas was estimated. This increase in the undiscovered resource is attributed to new geologic information and data.
El Nino and Southern Oscillation in 2010
June 28, 2011 03:09 PM - Andy Soos, ENN
Worldwide, 2010 was one of the two warmest years on record according to the 2010 State of the Climate report, which NOAA released today. The peer-reviewed report, issued in coordination with the American Meteorological Society, was compiled by 368 scientists from 45 countries. It provides a detailed, yearly update on global climate indicators, notable climate events and other climate information from every continent. This year’s report tracks 41 climate indicators ”• four more than last year ”• including temperature of the lower and upper atmosphere, precipitation, greenhouse gases, humidity, cloud cover, ocean temperature and salinity, sea ice, glaciers, and snow cover. Each indicator includes thousands of measurements from multiple independent datasets that allow scientists to identify overall trends.
Nautical Air Emissions
June 28, 2011 02:04 PM - Andy Soos, ENN
In the United States, several federal agencies and laws have some jurisdiction over pollution from ships in U.S. waters. States and local government agencies also have responsibilities for ship-related pollution in some situations.The U.S. Environmental Protection Agency (EPA) and the U.S. Coast Guard (USCG) today announced an agreement to jointly enforce U.S. and international air pollution requirements for vessels operating in U.S. waters. The requirements establish limits on nitrogen oxides (NOx) emissions and require the use of fuel with lower sulfur content, protecting people’s health and the environment by reducing ozone-producing pollution, which can cause smog and aggravate asthma. The most stringent requirements apply to ships operating within 200 nautical miles of the coast of North America. International rules (MARPOL 73/78)have six Annexes of the Convention cover the various sources of pollution from ships and provide an overarching framework for international objectives. In the U.S., the Convention is implemented through the Act to Prevent Pollution from Ships. Under the provisions of the Convention, the United States can take direct enforcement action under U.S. laws against foreign-flagged ships when pollution discharge incidents occur within U.S. jurisdiction. When incidents occur outside U.S. jurisdiction or jurisdiction cannot be determined, the United States refers cases to flag states, in accordance with MARPOL. These procedures require substantial coordination between the Coast Guard, the State Department, and other flag states.
Cinnamon and Alzheimer
June 28, 2011 08:00 AM - Andy Soos, ENN
Alzheimer's, the degenerative brain disorder that disrupts memory, thought and behavior, is devastating to both patients and loved ones. According to the Alzheimer's Association, one in eight Americans over the age of 65 suffers from the disease. Now Tel Aviv University has discovered that an everyday spice in your kitchen cupboard could hold the key to Alzheimer's prevention. Cinnamon is a type of spice that is widely used for making various things such as eatables, beverages, pharmaceuticals and liquors. Apart from these commercial things, cinnamon is also one of the common household spices. We generally use cinnamon sticks and cinnamon powder for cooking. An extract found in cinnamon bark, called CEppt, contains properties that can inhibit the development of the Alzheimer disease.
Economic Indicators Point Toward Growth in Renewable Energy
June 27, 2011 09:29 PM - Doug Elbinger, Environmental Issues Editor GreeningDetroit.com
While scanning the horizon in sea of mostly grim economic news, I found three gems - - - news reports or economic indicators, if you will, that point to solid and profitable growth in the renewable energy sector of the economy in the near, 3-5 year term. These indicators point toward a shift in the financing, production, consumption and distribution of alternative energy, predicated on advances in technology that will bring the productions costs down to a competitive plateau with conventional fossil fuels. I suspect the time it takes from "innovation in the laboratory" to diffuse into the commercial market place has to be reduced from years to months or less, in order for this to work. When investors like General Electric, Google, and MIT, direct research and investment on this scale - - - it just might tip the balance. 1. The cost benefit ratio of "coal fired" electricity vs "solar" will equalize or fall in favor of solar. In a recent report from Bloomberg news, Mr. Mark M. Little, the global research director for General Electric Co., predicts that solar power may be cheaper than electricity generated by fossil fuels within 3-5 years. A combination of rising energy prices with lower production cost and higher efficiency will make solar cost competitive with conventional coal fired electric generation. General Electric (GE) plans to invest in "advanced" solar panel manufacturing and expects to open a plant in 2013, employing over 400 people and make enough solar panels to power 80,000 homes. If this business plan unfolds as predicted, watch for explosive growth on all fronts the Solar industry.