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Ice core data show why air pollution is dropping more slowly in US and Western Europe despite lower sulfur emissions

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This makes conversion of sulfur dioxide to sulfate more efficient. We need to understand this multiphase chemistry in the atmosphere to design an efficient strategy to manage air pollution and accurately predict future air pollution and climate change impacts.

Pollution 221
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SANY developing hydrogen fuel cell construction vehicles

Green Car Congress

According to the R&D engineer of this project, hydrogen fuel cell construction vehicles have five important advantages: The realization of zero pollution with only water and heat being discharged. With a high-torque drive motor and an AMT gearbox, the high-power fuel cell stack features an energy conversion rate of more than 50%.

Hydrogen 449
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Greyrock, NREL study determines reduction in GHG and criteria pollutant emissions from using synthetic fuels produced from flare gas

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A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. billion liters (18.8

Pollution 258
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California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

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The FY 2011-2012 plan focused primarily on five areas of interest: sustainable communities; behavior and technology adoption; health and air pollution exposures; air pollution science; and greenhouse gas targets. These regulations have led to considerable improvements in air quality throughout California.

Pollution 231
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GTI quantifies opportunity to produce low-carbon renewable natural gas (RNG) from wood wastes

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New RNG production facilities using the commercial technologies outlined in the analysis could reduce criteria pollutants by approximately 99% compared to existing operational biomass power plants and produce a very low carbon fuel in the base case and below zero in the case including carbon sequestration technologies.

Waste 281
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Discovery of mechanism for atmospheric particle formation suggests need for ammonia emission regulations

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When the temperature gets colder, they can actually go through the gas to particle conversion process, creating new particles and increasing the overall particle number concentration. There are no factories or farms, and planes are thought to make up most of the pollutants in this area. The emission sources are limited up there.

Emissions 186
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Study: expanding Brazilian sugarcane for ethanol could reduce global CO2 emissions by up to 5.6%

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Vastly expanding sugarcane production in Brazil for conversion to ethanol could reduce current global CO 2 emissions by as much as 5.6%, according to a new study by an international team led by researchers from the University of Illinois. The carbon-related costs of converting the land to sugarcane fields were included in the analysis.

Brazil 150