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.

Ozone 255

Ozone Global North America Colorado 255

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 Arctic climate is changing faster than some scientists expected. The study will run through 15 May out of Svalbard, Norway.

Climate 199

Climate International Ozone Norway 199

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? Research takes a long time.

Ozone 123

Ozone Solar Climate Change Climate 123

Green Car Congress

JUNE 12, 2023

A study led by Norwegian climate center CICERO has found that the global warming effect of leaked hydrogen is almost 12 times stronger than that of CO 2. Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere affect greenhouse gases such as methane, ozone, and stratospheric water vapor. Sand et al.

Hydrogen 435

Hydrogen Global Ozone CO2 435

Green Car Congress

NOVEMBER 10, 2009

HFO-1234yf is a non-Ozone Depleting Substance with a Global Warming Potential (GWP) of 4. Tags: Climate Change Emissions Vehicle Systems. Issues concerning HFO-1234yf investigated in CRP 1234 included; safety and risk assessment; air-conditioning system efficiency and performance; material compatibility; flammability; and toxicity.

Global 186

Global USA Climate Change Japan 186

Green Car Congress

JUNE 27, 2013

GWP100 weighted specific climate impact (g CO 2 -eq per pkm) as a function of vehicle occupancy. 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.

Climate 186

Climate Diesel Climate Change Emissions 186