Green Car Congress

JULY 1, 2019

This analysis examined the effect of flight distance on greenhouse gas emissions per passenger, and compared emissions from flying different distances with annual emissions from driving. Greenhouse gas emissions were examined for 17 nonstop flights with round-trip distances ranging from 131 miles to 19,040 miles. by Michael Sivak.

Emissions 419

Emissions Los Angeles Gas San Francisco 419

Green Car Congress

MAY 15, 2017

A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., Henze, Forrest Lacey, Christopher S.

Diesel 230

Diesel International Emissions Ozone 230

Green Car Congress

JANUARY 23, 2020

Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. This gas has very few industrial applications.

Emissions 199

Emissions Ozone India 2017 199

Green Car Congress

MARCH 22, 2018

The University of Bremen is the scientific base of the international project known as EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales). HALO in-hangar in Taiwan. The aim is to better understand and predict the extent and impact of urban air pollution on Earth’s atmosphere.

Emissions 268

Emissions Taiwan Asia Ozone 268

Green Car Congress

APRIL 3, 2013

Having approval for such a high octane certification fuel would, the EPA proposed in the Tier 3 Notice of Proposed Rulemaking: help manufacturers that wish to raise compression ratios to improve vehicle efficiency, as a step toward complying with the 2017 and later light-duty greenhouse gas and CAFE standards (2017 LD GHG).

EPA 255

EPA Fuel Parts Gasoline 255

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? cancel the launch.

Ozone 113

Ozone Solar Climate Change Climate 113

Green Car Congress

SEPTEMBER 25, 2016

These older systems used chlorofluorocarbons (CFC-12) as the refrigerant gas. These were shown to be ozone-depleting, however, and were targeted for phasing out under the 1987 Montreal Protocol. The switch the HFC-134a as the preferred replacement refrigerant was rapid.

China 150

China Ozone Chinese United States 150