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

Green Car Congress

Despite these successes, sulfate levels in the atmosphere have declined more slowly than sulfur dioxide emissions, especially in wintertime. This unexpected phenomenon suggests sulfur dioxide emission reductions are less efficient than expected for cutting sulfate aerosols. These trends are expected to continue.

Pollution 221
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NUS researcher links air pollution to increased residential electricity demand

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The study, set in Singapore, suggests that better air quality will bring about climate co-benefits in reducing electricity generation via lower household demand, and thus mitigating carbon emissions. This is important for policymakers when forecasting and influencing future emissions paths in the context of climate change.

Pollution 275
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ICL briefing paper estimates that 52% of all small particle pollution from road transport comes from tires and brakes

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A new briefing paper from Imperial College London estimates that in 2021, 52% of all small particle pollution from road transport came from tires and brakes. Despite this, research on the environmental and health impacts of tire wear has been neglected in comparison to the research and innovations dedicated to tackling fuel emissions.

Pollution 243
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Mayor of London expanding Ultra Low Emission Zone London-wide; new £110M scrappage scheme

Green Car Congress

The Mayor of London, Sadiq Khan, will expand the Ultra Low Emission Zone (ULEZ) ( earlier post ) London-wide. The expansion will come into effect on 29 August 2023 and will operate across all London boroughs up to the existing Low Emission Zone boundary for large and heavy vehicles. Source: Transport for London. Source TfL.

Scrappage 273
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Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

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A new study led by researchers from Northwestern University projects that if electric vehicles replaced 25% of combustion engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. The open-access paper is published in AGU’s journal GeoHealth.

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Study finds pollution emitted near equator has biggest impact on global ozone

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Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane.

Ozone 230
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Gas War: 25 States Sue EPA Over Updated Emissions Regulations

The Truth About Cars

Over two dozen states have joined forces to sue the Environmental Protection Agency (EPA) over proposed vehicle emissions regulations put forward by the Biden administration in March. We won’t stop fighting to protect our communities from pollution and the climate crisis.”

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