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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

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A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. of the registered vehicles (2000/325000). —Bishop et al.

Emissions 150
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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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Emission rates of BC in the year 2000 by region, indicating major source categories in each region. Total global emissions of black carbon using bottom-up inventory methods are 7500 Gg yr -1 in the year 2000 with an uncertainty range of 2000 to 29000. Source: Bond et al. Click to enlarge. W m -2 (+0.17 W m -2 range).

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Despite a Slight Recovery in 2009, Arctic Sea Ice Remains on Downward Trend

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Despite a slight recovery in summer Arctic sea ice in 2009 from record-setting low years in 2007 and 2008, the sea ice extent remains significantly below previous years and remains on a trend leading toward ice-free Arctic summers, according to the University of Colorado at Boulder’s National Snow and Ice Data Center. Earlier post.).

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Study projects thermoelectric power in Europe and US vulnerable to climate change due to lower summer river flows and higher river water temperatures

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Projected changes in summer mean usable capacity of power plants in the US and Europe for the SRES A2 emissions scenario for the 2040s (2031–2060) relative to the control period (1971–2000). Source: van Vliet et al. Click to enlarge. A study published in Nature Climate Change suggests that thermoelectric power plants (i.e.,

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Warming Climate Threatens California Fruit and Nut Production

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Winter chill, a vital climatic trigger for many tree crops, is likely to decrease by more than 50% in California during this century as global climate warms, making the state no longer suitable for growing many fruit and nut crops, according to a team of researchers from the University of California, Davis, and the University of Washington.

Climate 170
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False Starts: The Story of Vehicle-to-Grid Power

Cars That Think

It occurred in the wake of the California electricity crisis of 2000 and 2001, when mismanaged deregulation, market manipulation, and environmental catastrophe combined to unhinge the power grid. AC Propulsion’s president, Tom Gage, explains the company’s vehicle-to-grid technology at a 2001 conference in Seattle. After earning a Ph.D.

Grid 138
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Rory Cooper’s Wheelchair Tech Makes the World More Accessible

Cars That Think

These days, Cooper and his team at the University of Pittsburgh ’s Human Engineering Research Laboratories are working to develop advancements including a wheelchair that can travel on rough terrain. About Rory Cooper Employer Human Engineering Research Laboratories at the University of Pittsburgh. Department of Veterans Affairs.