Numerous studies have raised critical concerns about the promise of corn ethanol’s ability to mitigate climate change and reduce dependence on fossil fuels. Some of the studies have suggested that after a full life cycle assessment—meaning an analysis of environmental impact throughout all stages of a product’s life—biofuels like corn ethanol may not offer any greenhouse gas emissions reductions relative to petroleum fuels.
The Royal Society of Chemistry journal Energy & Environmental Science recently published research by a team from the University of Pittsburgh and the University of Oklahoma investigating the full life cycle impact of one promising “second-generation biofuel” produced from short-rotation oak. The study found that second-generation biofuels made from managed trees and perennial grasses may provide a sustainable fuel resource.
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Canadian Archaeologists Challenge the Credibility of GIS Methods to Assess the Impact of Weather on Shoreline Erosion
Although computer models of archaeological sites are commonly used to yield insights which contribute to the protection of heritage materials, scientists often question their credibility, calling for these long-term trends be 'ground truthed' in order to ensure that calculated rates of change reflect observed phenomena ‘in the field’. This is particularly true in areas which tend to experience more pronounced and cumulative impacts of modern climate change.
A recent study by Michael J. E. O’Rourke from the University of Toronto, published in Open Archaeology, provides a new perspective on the severe impacts of escalating climate change on the heritage resources of Canadian Arctic. Referring to the application of Geographic Information System (GIS) analytical methods in assessing the threat of shoreline erosion to archaeological sites in the Canadian Arctic, it details steps taken to review the quality of the GIS model in light of a discrepancy with rates observed during annual survey visits.
Red blood cell variation linked to natural malaria resistance
A study from the Wellcome Trust Sanger Institute, the Wellcome Trust Centre for Human Genetics and their collaborators have identified a genetic rearrangement of red blood cell glycophorin receptors that confers a 40 per cent reduced risk from severe malaria.
Physicists discover that lithium oxide on tokamak walls can improve plasma performance
Lithium compounds improve plasma performance in fusion devices just as well as pure lithium does, a team of physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has found.
Mosquitoes that spread Zika virus could simultaneously transmit other viruses
A new study led by Colorado State University researchers found that Aedes aegypti, the primary mosquito that carries Zika virus, might also transmit chikungunya and dengue viruses with one bite. The findings shed new light on what’s known as a coinfection, which scientists said is not yet fully understood and may be fairly common in areas experiencing outbreaks.
Modern pollutants can reach deep fossil aquifers
Contemporary pollutants can reach deep wells that tap fossil aquifers, says a study by an international team of researchers.