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Livestock were the single largest source of methane gas emissions in the United States in 2004, releasing 70% more into the atmosphere than the oil and gas industry as estimated by other inventories, according to a new study by a team from Harvard University, JPL/CalTech and UC Irvine. The EPA estimates that 8.8 megatonnes (9.7
A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 L/2004 calibration engines.
Long-term exposure to particulate air pollution has been linked to an increased risk of heart disease, but the biological process has not been understood. Participant-specific pollutant concentrations averaged over the years 2000–10 ranged from 9.2–22.6 The study is published in The Lancet. and NO x between 1999 and 2012. μg PM 2.5 /m
Fine particulate matter air pollution (PM 2.5 ) may be associated with blood vessel damage and inflammation among young, healthy adults, according to new research in Circulation Research , an American Heart Association journal. Air pollution is known to contribute to cardiovascular disease and related deaths. Arden Pope, Ph.D.,
Decreases in ambient air pollution levels over the past 20 years in Southern California were associated with significant reductions in bronchitic symptoms in children with and without asthma, according to a study by researchers at the University of Southern California published in JAMA. Kiros Berhane, Ph.D., —Berhane et al.
The flights will be supported by the US Environmental Protection Agency (EPA) and will aid EPA in monitoring pollutants. The fundamental challenge for satellites measuring air quality is to distinguish between pollution near the surface and pollution higher in the atmosphere. Measuring pollution from space.
A team of atmospheric scientists and environmental engineers from Harvard University and Tsinghua University in Beijing have continuously measured atmospheric CO 2 and carbon monoxide (CO) levels in rural Miyun, about 100 km northeast of Beijing, since November 2004. She completed her Ph.D. Munger, J. McElroy, M. Nielsen, C.
While fine particulate air pollution is known to cause respiratory and cardiovascular diseases, a new study indicates that it also likely causes damage to the kidneys. Regions with high levels of fine particulate air pollution had the highest rates of membranous nephropathy. 2016010093.
In a new report released by the California Air Resources Board, scientists from the University of California at Davis and Berkeley estimate that rising temperatures from climate change will increase ozone levels in California’s major air basins. Our study reveals that climate change and regional air pollution are intertwined problems.
Nanostellar was founded in California in 2004 by scientists from Stanford University and NASA Ames Research Center. Co-founder and Chief Science Officer Dr. Kyeongjae (KJ) Cho, currently professor of materials science and engineering and physics at the University of Texas, Dallas, is a senior author on the Science paper.
The anaerobic digester system that will be used was developed as a pilot project at the University of California, Davis. The University of California, Davis, will receive $2,770,072 to research the comparative value, benefits and drawbacks of all types of alternative fuels in California. EdeniQ is based in Visalia, Tulare County.
Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. Determining effective strategies for mitigating surface ozone (O 3 ) pollution requires knowledge of the relative ambient concentrations of its precursors, NO x , and VOCs.
A team of researchers from Carnegie Mellon University has analyzed the impact of plug-in hybrid electric vehicle (PHEV) battery pack size on fuel consumption, cost and greenhouse gas emissions over a range of charging frequencies (distance traveled between charges). Shiau et al. 2009) Click to enlarge.
Professor Robert Cervero, Department of City and Regional Planning, University of California-Berkeley. Winner of the 2004 Dale Prize for Excellence in Urban Planning. Professor Sebastian Thrun, Stanford University. Cervero, The Scandinavian Model: Strings of TODs, Urban Land, May, 2004, p. Dr. Luca Guala, Systemica.
But theyve needed definitive proof that PHEVs wont increase pollution. CA, NY, MA and other states have had Zero-Emission Vehicle programs since the early 1990s because battery electric vehicles in those states, taking into account power plants, are far cleaner than gasoline cars in reducing urban air pollution and smog. The GREET 1.6
She outlined a list of complaints: noise pollution (peaks of 87 decibels, well over the allowed 55, according to municipal limits ); streets so packed with revelers that it is hard to walk or even reach one’s front door; an exodus of fed-up locals that is changing the character of picturesque neighborhoods. Last year, about 8.5
The Asian monsoon circulation provides an effective pathway for pollution from Asia, India, and Indonesia to enter the global stratosphere, according to a new international study led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. NCAR scientist William Randel, the lead author.
Power and Associates 2004 report ]. Dont PHEVs just shift pollution from gasoline cars to power plants? But its monumentally less pollution , even on the national (half-coal) grid. At the moment, only 2004-2007 Priuses , and to a limited extent, the Ford Escape/Mercury Mariner Hybrids. So for now were sticking with PHEV.
Researchers at Peking University have developed a new methodology to model black carbon (BC) emissions from diesel and gasoline motor vehicles. There is also a potential of applying the quantitative approach developed in this study to other pollutants. Credit: ACS, Wang et al. Click to enlarge. —Wang et al. Click to enlarge.
Several dozen prototypes on 15-passenger van since 2004; now in second generation development; no production plans. Some answers on consumer expectations and daily performance should come out of evaluations of the prototypes to be conducted at the Irvine and Berkeley campuses of the University of California that will begin later this month.
May, 2009 : Testifying at a public hearing conducted by the US Environmental Protection Agency (EPA), Stanford University professor Mark Jacobsen urged the EPA to incorporate black carbon into calculations of greenhouse gases. Earlier post.) and 5.0%.
Stronger protection reduces the risk of opportunistic behavior by the licensee (Merges, 1998; Arora and Merges, 2004) and reinforces the licensor’s bargaining power, which enables him to appropriate a larger share of the total surplus generated by the licensing deal. Obstacles to Licensing. Sheehan (2006), STI Working Paper, OECD.
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