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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.

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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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These findings suggest that policymakers should target further emissions reductions from such sectors, particularly in transportation and agriculture. We do not include damages from morbidity or other pollutants such as exposure to nitrogen oxides (NO x ) or ozone. —Tschofen et al. Peter Tschofen, Inês L. Azevedo, Nicholas Z.

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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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Deterioration of the ozone layer [kg CFC-11-eq.]. The Carculator graphically presents these values for all selected vehicles in parallel, for ease of comparison. The system will graph lifecycle impact for a range of specified powertrains, for a large number of impact categories: Climate change [kg CO 2 -eq.]. —Romain Sacchi.

Mariner 435
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NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

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VOCs, primarily emitted from the tailpipes of vehicles, are a key ingredient in the formation of ground-level ozone which, at high levels, can harm people’s lungs and damage crops and other plants. —lead author Carsten Warneke, Ph.D.,

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NOAA greenhouse gas index continues climbing; 1.29 in 2010

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the combined heating effect of long-lived greenhouse gases added to the atmosphere by human activities has increased by 29% since 1990, the index year used as a baseline for comparison. It also includes several chemicals known to deplete Earth’s protective ozone layer, which are also active as greenhouse gases. in 2010—i.e.,

2010 199
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Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

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Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. The publication gives the opportunity for an “apples-to-apples” comparison between the environmental impacts of the two types of powertrains: same manufacturer, same model, same boundary conditions. Click to enlarge.

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HEI: 95%+ of world’s population live in areas of unhealthy air

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Comparison of 2016 annual average PM 2.5 Ozone, another important component of outdoor air pollution, whose levels are on the rise around the world, contributed to 234,000 deaths from chronic lung disease. Population-weighted seasonal average ozone concentrations in 2016. Transportation was a distant 7 th.

Pollution 218