So how about all-electric supersonic aircraft, then?

So how about all-electric supersonic aircraft, then?

Supersonic airliners haven't flown since 2003, when the last Concorde was retired. But could supersonic planes carrying large number of passengers make a comeback—and with electric power no less? That's the vision of Luke Workman, a designer of lithium-ion battery packs who believes... read more

October 23, 2016 by -
Wind farm, by Flickr user Patrick Finnegan (Used under CC License)

Carbon emissions from U.S. power generation fall to 25-year low

While automakers work to meet stricter carbon-emissions standards, another sector of the U.S. economy has already made notable progress in reducing ts emissions... read more October 14, 2016 by

2016 BMW M2 production in Leipzig, Germany

German upper house asks EU to ban new gas, diesel car sales by 2030

Last week, the German Federal Council adopted a bipartisan measure that would ban the sale of new vehicles with internal-combustion engines in the country after 2030. While... read more October 11, 2016 by

Airbus A320

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... read more October 10, 2016 by

Costa Fortuna cruise ship

LNG-powered cruise ships to enter service in 2019

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... read more October 9, 2016 by

Hoover Dam by Flickr user Airwolfhound (Used under CC License)

Hydro-power reservoirs emit methane, a greenhouse gas: no free lunch?

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... read more October 7, 2016 by

Chris Grundler, director of EPA Office of Transportation and Air Quality [photo: EPA via Flickr]

EPA's emissions sleuth: the most powerful man you've never heard of

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... read more October 5, 2016 by

U.S. Capitol Building

Michigan representative: roll fuel economy rules back to 'reasonable' level

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... read more September 27, 2016 by

Volkswagen TDI 'clean diesel' television ad screencap

VW Dieselgate one year later: what have we learned about diesel cars?

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... read more September 26, 2016 by

2010 Volkswagen Golf TDI

Every diesel brand in Europe emits more than VW, says new report

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... read more September 20, 2016 by

Offshore Oil Rig

Why Africa gets filthiest diesel fuel: little regulation, global traders

All countries have to deal with emissions from diesel vehicles, but African nations have it worse than most. They often have few emissions regulations, something Swiss... read more September 19, 2016 by

Gas pump

CAFE rules should stay as they are, auto-industry suppliers agree

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... read more September 15, 2016 by

2010 Volkswagen Golf TDI

First Volkswagen engineer pleads guilty to diesel emission fraud

Almost a year after news of Volkswagen's emissions cheating broke, an engineer pleaded guilty to charges related to the diesel scandal. This is the first time a VW employee... read more September 10, 2016 by

Portable Emissions Measurement Systems (PEMS) on a Peugeot 308

Study suggests every European diesel maker cheated on EU tests

The Volkswagen diesel scandal has thrown a bright spotlight on the way new cars and trucks are tested for compliance with emissions standards. The German carmaker's use of... read more September 9, 2016 by

Renault Eolab Concept for future plug-in hybrid vehicle, 2014 Paris Motor Show

Cleaning up diesel too costly for mass market, Renault says, as real-world testing looms

Since the news of Volkswagen's illegal "defeat device" software in TDI diesel cars broke almost a year ago, the future of diesel cars has been the topic of much discussion... read more September 7, 2016 by

2016 Harley-Davidson Softtail Slim S by Ed Tahaney

Harleys with no emission controls: a much bigger problem than you know?

Like cars, new motorcycles leave the factory with emissions-control equipment that radically reduce the volume of various pollutants released through their exhaust. Those... read more September 6, 2016 by


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