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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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The open-access paper is published in Nature Communications Earth & Environment. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. We used five different atmospheric chemistry models and investigated changes in atmospheric methane, ozone and stratospheric water vapor.

Hydrogen 435
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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Ozone formation. Even short periods of unhealthy ozone levels can cause local death rates to rise. Scenario A2 and RCP 8.5.

Ozone 199
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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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In a paper published in the journal Atmospheric Environment , they report on the findings from a suite of scenarios designed to quantify the effect of both the magnitude of EV market penetration and the source of electricity generation used to power them. coal, oil, natural gas, and biomass). Seasons and times of day. Schnell et al.

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Airborne measurements show ozone-forming VOCs emissions from ethanol plant higher than government estimates

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VOCs and nitrogen oxides react with sunlight to form ground-level ozone, the main component of smog. and so the question is: what does that do to the environment. De Gouw said the VOC emissions are likely generated by the production process, not the coal-burning that powers it.

Ozone 150
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Modelling the Impact of PHEVs on Ozone in Denver

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Denver represents an interesting case study for exploring potential PHEV impacts because it violates the federal air quality standard for ozone and because several large EGUs [electricity generating units] are located in or near the urbanized area. Ozone concentration increases were modeled for small areas near central Denver.

Denver 170
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Study findings suggest that switching from coal to natural gas would do little for global climate

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While coal use causes warming through emission of heat-trapping carbon dioxide, it also releases comparatively large amounts of sulfates and other particles that, although detrimental to the environment, cool the planet by blocking incoming sunlight. Methane is an especially potent greenhouse gas. degree Fahrenheit (less than 0.1

Coal 334
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Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

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Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and ventilation air from coal mines. Replacing coal by coal briquettes in cooking and heating stoves.

Ozone 218