article thumbnail

Study estimates California’s GHG reductions since 2003 could be wiped out by 2020 wildfires

Green Car Congress

In an open-access report in the journal Environmental Pollution , researchers from UCLA and the University of Chicago estimate that California’s wildfire carbon dioxide equivalent (CO 2 e) emissions from 2020 (~127 mmt CO 2 e ) are approximately two times higher than California’s total greenhouse gas (GHG) emission reductions since 2003.

2003 447
article thumbnail

York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone

Green Car Congress

Less traffic on the roads during the first COVID-19 lockdown in the UK led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, according to a new study led by researchers at the University of York. 20, 15743–15759 doi: 10.5194/acp-20-15743-2020. —Professor Lee. Drysdale, W.

Ozone 397
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

NOAA study finds reducing particulate air pollution in N America & Europe increases hurricanes in N Atlantic

Green Car Congress

A new NOAA study covering four decades of tropical cyclones found that reducing particulate air pollution in Europe and North America has contributed to an increase in the number of tropical cyclones in the North Atlantic basin and a decrease in the number of these storms in the Southern Hemisphere.

Pollution 370
article thumbnail

Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Green Car Congress

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al.

Pollution 362
article thumbnail

Argonne releases GREET 2020

Green Car Congress

Argonne National Laboratory’s Systems Assessment Center has released the 2020 version of the suite of GREET models and associated documentation. The following low-carbon alternative ammonia production pathways have been implemented in GREET 2020 release. Electricity generation efficiency and criteria air pollutant emission factors.

2020 324
article thumbnail

Study finds significant link between PM2.5 pollution and neurological disorders in US

Green Car Congress

pollution was significantly associated with an increased risk of hospital admissions for several neurological disorders, including Parkinson’s disease, Alzheimer’s disease, and other dementias, in a long-term study of more than 63 million older US adults, led by researchers at Harvard T.H. Chan School of Public Health.

Pollution 321
article thumbnail

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.

Exhaust 539