Los oceanógrafos del MIT y del Instituto Woods Hole Oceanographic informan que el noreste del Océano Pacífico ha absorbido una cantidad cada vez mayor de dióxido de carbono antropogénico en la última década, a un ritmo que refleja el aumento de las emisiones de dióxido de carbono inyectado en la atmósfera.
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Experts anticipate significant continued reductions in wind energy costs
Technology advancements are expected to continue to drive down the cost of wind energy, according to a survey of the world's foremost wind power experts led by Lawrence Berkeley National Laboratory (Berkeley Lab). Experts anticipate cost reductions of 24%-30% by 2030 and 35%-41% by 2050, under a median or 'best guess' scenario, driven by bigger and more efficient turbines, lower capital and operating costs, and other advancements.
Carbon-coated iron catalyst structure could lead to more-active fuel cells
Fuel cells have long held promise as power sources, but low efficiency has created obstacles to realizing that promise. Researchers at the University of Illinois and collaborators have identified the active form of an iron-containing catalyst for the trickiest part of the process: reducing oxygen gas, which has two oxygen atoms, so that it can break apart and combine with ionized hydrogen to make water. The finding could help researchers refine better catalysts, making fuel cells a more energy- and cost-efficient option for powering vehicles and other applications.
Led by U. of I. chemistry professor Andrew Gewirth, the researchers published their work in the journal Nature Communications.
Free-swimming Ocean Gliders Help Scientists Understand Storm Intensity
A regional team from Woods Hole Oceanographic Institution (WHOI), Rutgers University, the University of Maine, the University of Maryland, and the Gulf of Maine Research Institute mobilized Friday in advance of post-Tropical Storm Hermine’s arrival in the Northeast to gather data from new ocean instruments that will help better predict the intensity and evolution of future tropical storms along the US East Coast.
The team, part of the TEMPESTS program organized through the Cooperative Institute for the North Atlantic Region, is funded by the NOAA office of Oceanic and Atmospheric Research.
Healthcare costs for infections linked to bacteria in water supply systems are rising
A new analysis of 100 million Medicare records from U.S. adults aged 65 and older reveals rising healthcare costs for infections associated with opportunistic premise plumbing pathogens--disease-causing bacteria, such as Legionella--which can live inside drinking water distribution systems, including household and hospital water pipes.
A team led by researchers from the Friedman School of Nutrition Science and Policy at Tufts University and Tufts University School of Medicine found that between 1991 and 2006, more than 617,000 hospitalizations related to three common plumbing pathogens resulted in around $9 billion in Medicare payments--an average of $600 million a year. The costs may now exceed $2 billion for 80,000 cases per year, write the study authors. Antibiotic resistance, which can be exacerbated by aging public water infrastructure, was present in between one and two percent of hospitalizations and increased the cost per case by between 10 to 40 percent.
Air Pollution: The Billion Dollar Industry
The World Bank has released a new report highlighting the fact that air pollution costs world governments billions upon billions every year and ranks among the leading causes of death worldwide.
The estimates — drawn from a number of sources, including the World Health Organization’s most recently completed data sets compiled in 2013 — can for the first time begin to examine the overall welfare cost of air pollution.