emissions

 
When will we see 'tailpipes' on cars as morally wrong? An Earth Day question

When will we see 'tailpipes' on cars as morally wrong? An Earth Day question

Economists call them "externalities." They're the costs of people's actions on other people or communities—though the people taking those actions don't have to pay for those costs, even as they harm others. The emissions from combusting fossil fuels to propel vehicles are clearly a prime... read more

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Volkswagen TDI diesel vehicles owned by Phil Grate and family, Seattle, Washington

Europe diesel sales sag slightly, continuing trend since 2012

Despite efforts by Chevrolet to step into the void left by Volkswagen, sales of diesel passenger vehicles in the U.S. may have been permanently crippled by the VW diesel... read more April 17, 2017 by


 
Zunum range-extended electric regional jet - concept design

Electric jet startup is backed by Boeing and JetBlue

Seattle-based startup Zunum Aero has received funding from Boeing HorizonX and JetBlue Technology Ventures toward making its dream of electrified air travel a reality... read more April 17, 2017 by


 
Chrome exhaust pipe

Automakers seek deal to delay EPA's 2022-2025 emission rules

Despite some alarmist reporting, President Donald Trump hasn't abolished the EPA's vehicle emission limits. Nor has he wiped out corporate average fuel-economy rules, set by... read more April 14, 2017 by


 
2015 Volkswagen Golf TDI SE

Asking prices climb for used VW TDI diesels as buybacks proceed

If you have your eyes on a used Volkswagen or Audi TDI turbodiesel, you may wind up having to pay more today for 2009 through 2015 models than you would have when they were... read more April 7, 2017 by


 
2017 Ford F-150 Raptor strapped to a dyno

Trump budget slashes EPA emission testing, hits makers with higher fees

The prospect of ongoing operations as usual continues to darken for the Environmental Protection Agency. According to a detailed internal budget document published in the The... read more April 7, 2017 by


 
Walmart store sign (via Wikimedia)

Large corporations, manufacturers stick with climate pledges despite Trump

The new U.S. president, Donald Trump, is working to eradicate every Obama policy to limit the carbon emissions that contribute to climate change. Having variously called the... read more April 5, 2017 by


 
Mark Webber driving a 2016 Porsche 919 Hybrid in London

London's $27 entry charge for pre-2016 diesel cars to start April 2019

For more than 13 years, London has collected a stiff charge from motor vehicles entering the congested core of the city during weekday business hours. Known as the congestion... read more April 4, 2017 by


 
Chrome exhaust pipe

When will it be unacceptable to drive a car with a tailpipe? Poll results

No vehicle on earth is entirely free of emissions; even electric cars charged on renewable energy have emissions associated with their manufacturing. Those emissions... read more April 4, 2017 by


 
The White House, Washington, D.C.  [Creative Commons license by dcjohn]

Trump's climate-change order: now what happens?

These do not appear to be the best of times for President Donald J. Trump, but his agenda of eliminating regulations and promoting fossil fuels continues to roll out. This... read more March 31, 2017 by


 
2012 Subaru Impreza hatchback used for Google Street View, modified to gather data on methane leaks

Google Street View car used to spot, quantify methane leaks

Natural gas is growing as a part of the world's grid mix, because its carbon per kilowatt-hour is much lower. But methane leaks that emit large volumes of climate-change gas... read more March 31, 2017 by


 
2017 Toyota Prius

How to curb climate change yourself: drive a more efficient car

Given the current political landscape in Washington, it's not unreasonable to worry about the future of U.S. efforts to combat climate change. The Trump Administration has... read more March 30, 2017 by


 
Cooling tower at power plant, by Flickr user Paul J Everett (Used under CC License)

Natural-gas plants cut carbon, but methane emissions can be 100 times higher than expected

While renewable energy gets significant press as an alternative to coal in electricity generation, it isn't the main factor in decreasing the use of that carbon-intensive... read more March 29, 2017 by


 
California Air Resources Board chair Mary Nichols (via Twitter)

California reaffirms state emission, electric-car rules for 2025

The California Air Resources Board voted Friday to confirm its stricter emissions standards for 2025, setting up a potential clash with the Trump Administration. The CARB... read more March 27, 2017 by


 
Big square baler harvesting wheat straw for production of cellulosic ethanol

E15 gasoline faces stronger headwinds as more states move to ban it

While political control in Washington has changed, the debate over a mandate to blend specific volumes of ethanol into the U.S. fuel supply has not. Since its passage in 2007... read more March 27, 2017 by


 
Nissan Sway Concept

California conundrum: 2018 Leaf, Bolt EV, or Mirai fuel-cell car?

California is very different from the rest of the United States. All by itself, it's the sixth largest economy in the world. One eighth of all Americans live there. It's home... read more March 24, 2017 by


 

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