article thumbnail

TOAR shows present-day global ozone distribution and trends relevant to health; public database

Green Car Congress

Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone 255
article thumbnail

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. Cars’ average carbon dioxide emissions have dropped by 25% since the early 2000s, according to the US Environmental Protection Agency (EPA), but this gas only accounts for part of the total.

Emissions 397
article thumbnail

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

Green Car Congress

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
article thumbnail

Study suggests future climate changes to worsen air quality for >85% of China’s population; ~20k+ additional deaths each year

Green Car Congress

W/m 2 before 2100 without overshoot by employment of a range of technologies and strategies for reducing greenhouse gas emissions.). 55% of land area) by the middle of the century, and would increase by 3% and 4% the population-weighted average concentrations of fine particulate matter (PM 2.5 ) and ozone, respectively. (The RCP 4.5

article thumbnail

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

Green Car Congress

This highlights the potential of co-beneficial solutions to climate change that not only curb greenhouse gas emissions but also reduce the health burden of harmful air pollution. —Daniel Peters, a climate scientist with the EDF, formerly of Northwestern and lead author of the new study. Resources.

article thumbnail

IPCC: GHG emissions accelerating despite mitigation efforts; major institutional and technological change required to keep the heat down

Green Car Congress

Scenarios show that to have a likely chance of limiting the increase in global mean temperature to two degrees Celsius, means lowering global greenhouse gas emissions by 40 to 70% compared with 2010 by mid-century, and to near-zero by the end of this century. Ambitious mitigation may even require removing carbon dioxide from the atmosphere.

Emissions 257
article thumbnail

Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Recent studies have compared emissions of PFI and GDI vehicles, including particle number and mass, gaseous pollutants, and nonmethane organic gas (NMOG) composition for a limited number of compounds. Measurements include gas- and particle-phase emissions, particle number, particle size distributions, and speciated NMOG emissions.

Fleet 207