Remove Global Remove Minnesota Remove Ozone Remove Universal
article thumbnail

Study finds modifying urban form may be a strategy to reduce air pollution

Green Car Congress

Based on their findings in a new study, researchers from the University of Washington and the University of Minnesota suggest that modifying urban form—as a means of affecting motor vehicle usage—may be a strategy to mitigate urban air pollution. is attributable to motor vehicles. —Bechle et al.

Pollution 231
article thumbnail

Study finds that cities with highly contiguous built-up areas have on average lower NO2 concentrations

Green Car Congress

In the first empirical study using satellite measurements to explore the relationship between urban form and air pollution, a team from the University of Minnesota has found that cities with highly contiguous built-up areas have, on average, lower concentrations of nitrogen dioxide (NO 2 , a key component of urban air pollution).

Pollution 225
article thumbnail

Study finds that environmental impact of corn-ethanol E85 is 23% to 33% higher than that of gasoline; environmental problem-shifting

Green Car Congress

GW = global warming; Eut. eutrophication; ET = ecological toxicity; FEC = fossil energy consumption; WU = water use; LO = land occupation; “The rest” includes acidification; smog formation; ozone layer depletion; and human health effects. Environmental impacts of gasoline and E85. Error bar shows regional variations for E85.

Gasoline 357
article thumbnail

Researchers report on potential long-range atmospheric emissions impacts of increased ethanol fuel use in North America

Green Car Congress

Terrestrial plants are thought to be the dominant global source of atmospheric ethanol.) Here we use a global 3D chemical transport model (GEOS-Chem CTM) applied to an ensemble of airborne observations to derive new constraints on natural and anthropogenic ethanol sources in North America. Labels at left are months (e.g.,

article thumbnail

Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

Green Car Congress

Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). Dashed lines show US average emissions. Credit: ACS, Tessum et al.

Gasoline 236