Green Car Congress
FEBRUARY 6, 2018
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.
Green Car Congress
OCTOBER 18, 2019
was exceeded at 69% of the stations located in all of the reporting countries, except Estonia, Finland and Norway. 20 % of stations registered concentrations above the EU ozone (O 3 ) target value for the protection of human health. The long-term WHO AQG for PM 2.5 17 % of the EU?28
Green Car Congress
APRIL 21, 2011
Scientists from the US, Norway, Russia, Germany, Italy and China are participating in a study examining the potential role of black carbon, or soot, on the rapidly changing Arctic climate. The study will run through 15 May out of Svalbard, Norway. The Arctic climate is changing faster than some scientists expected.
Cars That Think
DECEMBER 19, 2021
Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? about 0.6 °C.
Green Car Congress
JUNE 12, 2023
Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere affect greenhouse gases such as methane, ozone, and stratospheric water vapor. The main changes in the radiative forcing due to 1 Tg flux of hydrogen; methane (green bars), ozone (yellow), stratospheric water vapor (purple), and aerosols (red).
Green Car Congress
NOVEMBER 10, 2009
HFO-1234yf is a non-Ozone Depleting Substance with a Global Warming Potential (GWP) of 4. Issues concerning HFO-1234yf investigated in CRP 1234 included; safety and risk assessment; air-conditioning system efficiency and performance; material compatibility; flammability; and toxicity.
Green Car Congress
JUNE 27, 2013
A team from Austria and Norway has found that the climate impact from a long-distance trip (500–1,000 km, or 310–621 miles) can easily vary by a factor of 10 per passenger depending on mode choice, vehicle efficiency, and occupancy. Insert: Zoom in for bus, trains, and cars. Credit: ACS, Borken-Kleefeld et al. Click to enlarge.
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