Scientists who scanned the skies above dozens of U.S. cities have made a surprising discovery about the smog that's suspended over Los Angeles: one of its key ingredients isn't disappearing as fast as it once did.
Environment
Nov 15, 2019
9
540
Just three months after the Euro 5 Norm for exhaust emissions went into force for all new car models, researchers at the Technische Universitaet Muenchen (TUM, Germany) have demonstrated an engine that is already close to ...
Engineering
Dec 7, 2009
1
0
An international team of researchers has uncovered the mechanism that allowed Volkswagen to circumvent U.S. and European emission tests over at least six years before the Environmental Protection Agency put the company on ...
Security
May 22, 2017
6
188
The COVID pandemic shutdowns in South Asia greatly reduced the concentration of short-lived cooling particles in the air, while the concentration of long-lived greenhouse gases was barely affected. Researchers were thus able ...
Environment
May 31, 2023
1
241
Our climate is out of balance: Increasing accumulation of CO2 in the atmosphere has caused the Earth's temperature to increase by 0.8° C since the beginning of the industrial revolution. According to a study by Thorsten ...
Environment
Oct 3, 2017
0
60
A mysterious surge in planet-heating atmospheric methane in 2020 despite COVID lockdowns that reduced many human-caused sources can be explained by a greater release from nature and, surprisingly, reduced air pollution, scientists ...
Environment
Dec 14, 2022
0
228
Aviation has been calculated to be 3.5 percent of all human activities that drive climate change, new research shows.
Environment
Sep 3, 2020
0
623
Stricter environmental regulations enacted in the last few years are putting a squeeze on emissions from car engines, including nitrogen oxide. While modern "lean-burn" gasoline and diesel vehicles use less fuel, they also ...
Materials Science
Dec 22, 2014
0
0
Nitrous oxide (N2O) is a potent greenhouse gas that can contribute to climate change and damage the ozone layer. But its cycling in and out of ocean waters has remained poorly understood, making it difficult to predict how ...
Environment
Jun 5, 2015
11
721
Power plants that use natural gas and a new technology to squeeze more energy from the fuel release far less of the greenhouse gas carbon dioxide than coal-fired power plants do, according to a new analysis accepted for publication ...
Environment
Jan 9, 2014
9
0
