After much discussion, the United Nations' aviation agency plans to set limits on emissions from international airline flights. The agreement ratified by members of the UN International Civil Aviation Organization (ICAO) sets airlines' carbon emissions in the year 2020 as the ceiling of the total amount that will be legally allowed. Airlines that... UN deal reached to limit, offset global aviation emissions
After much discussion, the United Nations' aviation agency plans to set limits on emissions from international airline flights. The agreement ratified by members of the UN International Civil Aviation Organization (ICAO) sets airlines' carbon emissions in the year 2020 as the ceiling of the total amount that will be legally allowed. Airlines that... 
Cars and trucks aren't the only source of transportation-related carbon emissions. The massive ships that ply the world's oceans are major sources of pollution as well, but generally receive less attention from regulators. But one cruise line is now taking steps to reduce the environmental impact of its fleet. DON'T MISS: Cruise ships start to... 
The energy sources used to generate grid electricity can be a major source of greenhouse-gas emissions, and thus they affect the environmental impact of electric cars. The cleaner the electricity used to charge an electric car, the cleaner that car becomes in operation. And among potential energy sources, hydroelectric power from dams would seem... ![Chris Grundler, director of EPA Office of Transportation and Air Quality [photo: EPA via Flickr]](http://images.hgmsites.net/tmb/chris-grundler-director-of-epa-office-of-transportation-and-air-quality-photo-epa-via-flickr_100568318_t.gif)
Current Corporate Average Fuel Economy standards require U.S. automakers to achieve a fleet average of 54.5 mpg (equivalent to roughly 40 mpg on the window sticker) by 2025. But who ensures that companies are actually complying with the CAFE mandate? As automakers work to meet stricter emissions standards, the little-known staff of regulatory... 
Right now, the debate over the future of Corporate Average Fuel Economy (CAFE) standards is in full swing. Today, they call for a fleet average of 54.5 mpg (or about 38 mpg on window stickers) by 2025 for vehicles sold in the U.S. But many within the auto industry—and those sympathetic to it—would like to see those standards rolled... 
It's now a year and eight days since the EPA broke the news that Volkswagen had admitted to including "defeat device" software in almost half a million so-called "clean diesel" vehicles sold in the U.S. from 2009 through 2015. That software detected when the cars were undergoing laboratory tests, and kept their emissions within legal limits during... 
It's been a year since the U.S. Environmental Protection Agency (EPA) revealed that Volkswagen used illegal "defeat device" software that allowed its diesel cars to cheat emissions tests. The VW diesel scandal may be just the beginning, though. Because while Volkswagen continues to negotiate with regulators and customers in the U.S., it seems that... 
All countries have to deal with emissions from diesel vehicles, but African nations have it worst than most. They often have few emissions regulations, something Swiss trading firms take advantage of by importing fuel that's too dirty for sale in other regions. These firms often serve as both producer and distributor for fuels in Africa, according... 
The lobbyists for automakers have made their views on Corporate Average Fuel Economy (CAFE) standards through 2025 quite clear. The majority of carmakers would prefer to see those standards relaxed, delayed or altered. Today, they call for a fleet average of 54.5 mpg (or about 38 mpg on window stickers) for vehicles sold in the U.S. by 2025. DON'T...