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California Assemblymembers introduce bill phasing out gasoline-fueled small off-road engines

Green Car Congress

California Assemblymembers Marc Berman (D-Menlo Park) and Lorena Gonzalez (D-San Diego) introduced legislation to phase out the sale of new gas-powered small off-road engines (SORE), which are primarily used in lawn and garden equipment, including leaf blowers, lawn mowers, and other outdoor power equipment.

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Study quantifies impact of oil and gas emissions on Denver’s ozone problem

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The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O 3 ) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.

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EPA proposes air pollution standards for oil and gas drilling operations; focus on capture of escaping natural gas

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The US Environmental Protection Agency (EPA) proposed standards to reduce harmful air pollution from oil and gas drilling operations. Natural gas production in the USis growing, with more than 25,000 new and existing wells fractured or re-fractured each year. Details on the hearings will be announced soon.

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NASA satellite images highlight US air quality improvement with reduction of NO2

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New NASA satellite images released this week demonstrate the reduction of air pollution across the US. Nitrogen dioxide is one of the six common pollutants regulated by the US Environmental Protection Agency (EPA) to protect human health. It’s also a good proxy for the presence of air pollution in general.

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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. t e CO 2 /cap. t e CO 2 /cap.) and Toronto (11.6

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How Engineers Can Help Protect Earth From Worsening Climate Change

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The climate crisis is also having a severe effect on the planet, which is being battered by pollution, deforestation, and soil degradation. Ninety-nine percent of the global population breathes in air that exceeds WHO-guideline limits on pollutants, with low- and middle-income countries suffering from the highest exposures.

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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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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. Murray, L. Lamsal, L. Duncan, B., … Tonnesen, G.

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