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Wind Turbine Arrangement: Staggering Results
October 31, 2013 03:48 PM - Robin Blackstone, ENN
Location and organization apparently matters after all! Or at least that is what Cristina Archer, Assistant Professor at the University of Delaware has discovered with regard to wind turbine efficiency. Dr. Archer headed up a team of researchers from UD's College of Earth, Ocean and Environment to conduct studies on the effects of various wind turbine organizational placement patterns. Using a wind farm near Sweden for the basis of their study, they compared existing tightly paced, grid-like layouts to six alternate configurations. They tried multiple spacing distances in various styles of rows: straight arrays, linear but equal offsets and a staggered theatre style where any turbine in front does not obstruct the view from any one behind.
Renewable energy revolution will require better management of metals
October 31, 2013 01:38 PM - Jeremey Hance, MONGABAY.COM
If we are to avoid catastrophic climate change, scientists say global society will need a rapid and aggressive replacement of fossil fuel energy for renewable, such as solar, wind, geo-thermal, and tidal. While experts say a renewable revolution would not only mitigate climate change but also likely invigorate economies and cut life-threatening pollution, such a revolution would not come without challenges.
Clorox Sets High Environmental Goals
October 30, 2013 08:03 AM - Gina-Marie Cheeseman, Triple Pundit
The Clorox Company, a multinational manufacturer of consumer and professional products such as bleach, recently launched its third annual integrated report. The report titled Powerful, Purposeful, Proven, covers the company’s financial, environmental, social and governance performance.
Mercury Sediment Carried Forth by California Floods
October 29, 2013 01:59 PM - Robin Blackstone, ENN
Mercury contamination in sediment has been a big concern in the Central Valley lowland areas of California. But associate researcher from the University of California, Michael Singer has unearthed new information and considerations utilizing modern topographic datasets and modeling to track mercury-laden sediment. Singer hypothesizes that the progradation process resulting from 10-year flooding events within the valleys below the Sierra Nevada Mountains are the key to understanding and tracking the presence of mercury. Singer has connected the mercury amalgamation process, which was used to extract gold from the mountains during the 19th century with the current high incidence of mercury in regional delta sediment.
School Bus Company Fined $33K for Excessive Idling
October 29, 2013 09:02 AM - Editor, ENN
Watch out idlers — they're coming for you! Anti-idling laws on the federal, state, and local level are rapidly growing across the US in an effort to cut back on the billions of gallons of fuel that are wasted each year by idling vehicles. While it is difficult to patrol these idlers, especially on a local level, most states have laws against idling, with California taking the lead for the most codes and regulations. The US Environmental Protection Agency (EPA) is also taking action against companies that violate federally-enforceable motor vehicle idling limits. The latest culprit - North Reading Transportation (NRT), a Methuen company that operates school buses and provides student transportation services in several Massachusetts communities.
The Ozone hole seems to be getting smaller
October 29, 2013 06:48 AM - Roger Greenway, ENN
Remember the Ozone hole? Decades ago it was a big concern. It was getting bigger and bigger and our emissions of ozone-depleting substances was identified as the main reason. It continues to get smaller as anthropogenic emissions continue to be reduced. It was slightly smaller in 2013 than average in recent decades, according to NASA satellite data. The ozone hole is a seasonal phenomenon that starts to form during the Antarctic spring (August and September). The September-October 2013 average size of the hole was 8.1 million square miles (21 million square kilometers). For comparison, the average size measured since the mid-1990s when the annual maximum size stopped growing is 8.7 million square miles (22.5 million square kilometers). However, the size of the hole in any particular year is not enough information for scientists to determine whether a healing of the hole has begun.
Nuclear power gets twice the price of solar!
October 28, 2013 08:31 AM - Oliver Tickell, Ecologist
The UK government's policy to pay for more for nuclear power than for power from solar PV is in direct contradiction of EU rules on state aid. The Hinkley C nuclear power station is to be paid more than twice as much as German solar pv arrays of 10MW or more, energy expert David Toke of Aberdeen University has calculated. And even smaller arrays are being paid considerably less than the price paid to EDF at Hinkley.
Kazakhstan nuclear test site clean up success
October 27, 2013 08:32 AM - Paul Lowe / Panos, SciDevNet
A Soviet-era nuclear test site in Kazakhstan was cleaned up through a collaborative international project that could provide lessons for tackling other dangerous nuclear sites across the globe, a report reveals. The report, entitled 'Plutonium Mountain', documents how international scientific cooperation was important for securing nuclear waste from the site. It was released in August by the Belfer Center for Science and International Affairs at Harvard University, United States. The Semipalatinsk test site, which spans an area about the size of Belgium, lies in a remote part of eastern Kazakhstan. It embodied the post-Cold War risk of 'loose nukes' -- the threat that terrorists or rogue states could obtain nuclear fissile materials — according to the report.
India blocks progress on HFC emissions reductions
October 25, 2013 05:05 PM - Oliver Tickell, The Ecologist
The Indian Government has single-handedly blocked progress on an agreement to reduce emissions of the super-powerful greenhouse gases known as hydrofluorocarbons (HFCs). The G20 - which includes India as the world's tenth largest economy - resolved in September to phase down the consumption and production of HFCs under the Montreal Protocol, the international treaty which has successfully slashed emissions of ozone eating CFCs. But in the 25th meeting of the Montreal Protocol in Bangkok, which ended today, India deliberately blocked detailed discussions of the HFC-reduction proposals.
Breakthrough in CO2 conversion to useful forms of carbon
October 25, 2013 07:22 AM - Roger Greenway, ENN
CO2 is an important air pollution emission contributing to climate change. Researchers around the globe are looking at ways to remove CO2 from flue gasses and to store it (sequestering) or to in someway use it. By tuning gold nanoparticles to just the right size, researchers from Brown University have developed a catalyst that selectively converts carbon dioxide (CO2) to carbon monoxide (CO), an active carbon molecule that can be used to make alternative fuels and commodity chemicals. "Our study shows potential of carefully designed gold nanoparticles to recycle CO2 into useful forms of carbon," said Shouheng Sun, professor of chemistry and one of the study’s senior authors. "The work we've done here is preliminary, but we think there's great potential for this technology to be scaled up for commercial applications."