Green Car Congress

NOVEMBER 7, 2017

Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

Ozone 150

Ozone Insight Netherlands North America 150

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

OCTOBER 18, 2019

The new EEA analysis is based on the latest official air quality data from more than 4,000 monitoring stations across Europe in 2017. Among the findings: Concentrations of particulate matter (PM) continued to exceed the EU limit values and the WHO AQGs in large parts of Europe in 2017. For PM with a diameter of 10 ?m

Pollution 170

Pollution Estonia 2017 Ozone 170

Green Car Congress

MAY 15, 2017

The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., Heavy-duty vehicles, such as commercial trucks and buses, were by far the largest contributor worldwide, accounting for 76% of the total excess gas emissions. A paper on the work is published in the journal Nature.

Diesel 230

Diesel International Emissions Ozone 230

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

Green Car Congress

NOVEMBER 29, 2016

The major sources of methane in California are livestock (~30% of the state’s methane emissions), followed by landfills and oil and gas production. Methane is 72 times more efficient at trapping heat in the atmosphere than CO 2 , which is the most prevalent global warming gas. CO 2 remains in the atmosphere for up to a century.

Pollution 150

Pollution California Emissions Climate 150

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