2020 Mazda electric car to share Toyota underpinnings, technology

2017 Mazda Mazda3 4-Door Sport Auto GrilleMazda is a tiny carmaker on a global scale, producing just 1.6 million vehicles a year. It competes with four companies (GM, Nissan-Renault, Toyota, and VW Group) that each sell around 10 million a year, as well as numerous other smaller makers still larger than Mazda. In a world where reducing the carbon emissions from road vehicles is...

Exxon knew climate change was real, ads told public it wasn’t

Oil well (photo by John Hill)Sometimes it's best not to dare the public to do the research, especially if you're trying to persuade them of something that isn't true. Almost two years ago, Inside Climate News published a significant expose that confirmed Exxon's own scientists had agreed that human carbon emissions contributed to global warming as early as July 1977. But as...

Here’s how to comment on EPA proposal to loosen emission limits on cars

Chrome exhaust pipeOn August 10, the U.S. Environmental Protection Agency announced it would reopen the Comment Period for the vehicle-emission standards for model years 2022 through 2025 it had finalized in January. The auto industry and its lobbyists had complained that the agency had moved too quickly, despite its issuance last summer of a voluminous Technical...

Are Eco settings on cabin ventilation systems a safety hazard?

2013 Jaguar XK 2-door Convertible XKR Air VentsAs corporate average fuel economy requirements that started in 2012 continue to tighten, automakers have turned to an entire arsenal of tactics to reduce the fuel their vehicles burn. Downsized and turbocharged engines, transmissions with many more gears, lighter-weight structures, better aerodynamics and more all add incrementally to efficiency...

Trump EPA to hold unneeded ‘critique’ to challenge climate science

Coal, by Flicker user oatsy40 (Used Under CC License)The best analog to EPA administrator Scott Pruitt's latest action might be for the U.S. Geological Survey to undertake a "scientific critique" of theories that the world is round. After all, numerous authoritative sources over the years have raised doubts that the Earth is not flat. Surely their views deserve to be aired. Late last week, it...

Electric cars cleaner than any gas-only car for 97 percent of U.S. drivers

Electric-car wells-to-wheels emission equivalencies in MPG, May 2017 [Union of Concerned Scientists]Electric cars have no tailpipe emissions when running. But unless they're charged entirely on renewable energy—still statistically unlikely today—there are emissions associated with generating the electricity used to charge their batteries. For several years now, rigorous "wells-to-wheels" analyses of the carbon-dioxide emissions...

Two words the Trump Administration can’t say: climate change

Donald TrumpDuring President Donald J. Trump's half-hour meeting with Pope Francis at the Vatican yesterday, the pope gave the president a copy of his 2015 encyclical calling for urgent, drastic cuts in fossil-fuel emissions. It is unclear whether the U.S. president will peruse the document. Back at home, however, his administration is continuing unabated in...

Cities lead global push for cleaner, zero-emission cars

Mark Webber driving a 2016 Porsche 919 Hybrid in LondonCarlos Ghosn, the man behind the Nissan Leaf electric car and now the chairman of the Renault Nissan Alliance, isn't the first to say it. But his recent comment that cities are driving the push for electric cars is an important one, because it indicates a prime market for their advantages. The result is that city governments all over the world are...

Trump names vocal renewable-energy critic to oversee…renewable energy

The White House, Washington, D.C.  [Creative Commons license by dcjohn]While the news headlines on President Donald Trump mostly address potential scandals, his administration has also lagged significantly in appointing top-level officials to run government agencies. Those that have been appointed often have an adversarial relationship to the missions of the agencies they run. Scott Pruitt, for example, is now...

Could California climate-change rules raise gas price enough to backfire?

Gas pumpCalifornia has by far the most aggressive climate-change policies in the nation, and the state is a global leader in plans to reduce carbon-dioxide emissions. It's also the world's eighth-largest economy, with a growing population, soaring economic output, and a resolutely progressive legislature. While its zero-emission vehicle policies may get...

Ruling that EPA must regulate carbon emissions: now 10 years old

Chrome exhaust pipeAnniversaries often provide an opportunity to reflect on important past events, review what has happened since, and reflect upon the future. April 2 of this year marks the 10th anniversary of the Supreme Court ruling in Massachusetts vs EPA in which the EPA was forced to regulate carbon emissions. The passing of this anniversary was marked by an...

Pruitt won’t kill EPA ‘endangerment’ finding on climate change

Oklahoma attorney general Scott Pruitt, 2014The current EPA administrator, Scott Pruitt, does not accept the scientific consensus on human contribution to climate change, though he has given some contradictory statements on that matter. His views correspond closely to those of his boss, President Donald Trump, who notoriously compared the science to bovine excrement in a tweet and called...

Clean Power Plan carbon cuts may survive, even if Trump EPA kills rule

Photovoltaic solar power field at Volkswagen plant in Chattanooga, TennesseeThe Clean Power Plan’s future looks uncertain at best under President Donald Trump. The commander-in-chief appears to be urging American utility companies to pivot back towards burning coal to produce electricity. Ending the so-called “war on coal” is intended to create jobs in the mining sector, at the expense of the...

Trump can’t affect global climate-change progress, says Mayor Bloomberg

Cooling tower at power plant, by Flickr user Paul J Everett (Used under CC License)Former New York City mayor Michael Bloomberg has gone on record saying publicly what most analysts have discussed privately: the notion that Washington can direct the energy market back towards coal is wrong. In fact, Bloomberg is willing to go further: he believes that the U.S. can still meet the reductions set forth in the Paris climate treaty...

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

The White House, Washington, D.C.  [Creative Commons license by dcjohn]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 week, Trump appeared at the EPA to sign an executive order that directed the agency to reopen and reassess its Clean Power Plan for reducing carbon emissions from generating...

GM says green-car buyers should consider its diesels: here’s why

2017 Chevrolet CruzeDiesel engines will continue to appear in pickup trucks, European luxury SUVs, and at least a few mass-market crossover utility vehicles. Two of those are the Chevrolet Equinox and Mazda CX-5 crossovers that will launch for the 2018 model year. But the future of diesel in U.S. passenger cars remains far more up in the air, due to a confluence of...

Electric cars vs bicycles: which has a higher carbon footprint?

mercedes benz bicycle 007Electric cars are simply nicer and calmer to drive than conventional cars, and as their prices fall, that may be what will lure mass-market buyers over time. But they have undeniable benefit of lowering wells-to-wheels carbon emissions per mile driven, and they can also be powered entirely on renewable energy. Which makes them good for drivers and...