emissions

With the release of proposed new and lower fuel-economy rules expected from the NHTSA by March 30, many eyes have turned to the powerful California Air Resources Board. The state's pioneering role in reducing emissions and cutting air pollution predates even the existence of the U.S. Environmental...

It's been clear that under the Trump administration, the NHTSA and EPA plan to roll back linked fuel-economy rules and emission limits on new vehicles. Now a possible justification that will be used has emerged—and it's not the one many advocates had expected. According to a Bloomberg report...

Today, there are roughly 750,000 plug-in electric vehicles on U.S. roads and about 3,800 powered by hydrogen fuel cells. Proponents of each type of vehicle argue strenuously that their powertrain is a better way to produce vehicles with zero emissions from the tailpipe. Electric cars can be charged...

While VW is moving toward the end of buybacks, payments, and fines for eight years of cheating on diesel emission standards, Fiat Chrysler is still in the thick of its own diesel mess involving Jeep SUVs and Ram trucks. On February 2, the U.S. Justice Department offered to let the company move...

If a marketer talked enthusiastically about "healthy delicious cyanide," what would you think? You may wish to apply those judgments to mentions of "beautiful clean coal" by President Donald Trump, who used the phrase in Tuesday's State of the Union address. Trump claimed his administration had...

You may recall that President Donald Trump made some ambitious and audacious campaign promises about his plans to revive America's dwindling coal industry. Two weeks ago, The Washington Post fact-checked the president's delivery on those promises after his first year in office—in multiples of...

Last month, U.S. Energy Secretary Rick Perry signed an agreement with Saudi Arabian officials to research "carbon capture" technology for fossil fuels, the Department of Energy announced. Perry and Khalid Al Falih, the Saudi Minister of Energy, Industry, and Mineral Resources, signed a memorandum...

One of the world's largest oil producers is about to enter a tit-for-tat battle over climate change with government officials from multiple states. New York, Massachusetts, New York City, and a slew of cities in California have brought multiple lawsuits against oil producers for a lack of...

As automakers await the National Highway Traffic Safety Administration's new fuel-economy rules for 2022 through 2025, due March 30, regulators from California and Washington are still hammering out the specifics. A meeting between state and federal regulators on fuel-economy and emissions targets...

Mother Nature doesn't pay attention to politics. As a pair of articles in The Washington Post last week highlighted, climate change proceeds apace regardless of the daily news cycle. In other words, unless the U.S. and the world ramp up the pace of reducing carbon-dioxide emissions from all...

One year ago at the Detroit auto show, a company called Achates Power unveiled models of a new kind of internal-combustion engine. With opposed pistons in the middle and crankshafts at either end, it was sufficiently different to startle most visitors who paid attention. That engine came with some...

One of California's largest electricity producers recently published a white paper that analyzed how the state will achieve its 2030 greenhouse-gas targets—and it called into question targets set forth by California regulators. Specifically, Southern California Edison (SCE) said the targeted...

It's been hanging out there in limbo for more than six months: the answer to the question of what happens to gas-mileage rules under Trump. Given the daily political turmoil emanating from Washington, D.C., the fate of corporate average fuel economy rules may have gotten lost in the noise. But for...

It remains entirely unclear if the world as a whole will be able to cut its emissions of carbon dioxide fast enough to keep the global temperature rise below 2 degrees C over the next few decades. That's the level at which scientists say the most dire effects of climate change may be lessened or...

California is using the growing sums of money it receives from its emission cap-and-trade auction for good, including to tackle up some of the state's most egregious transportation polluters. In mid-December, California announced it would invest $663 million in a plan to clean up particularly dirty...

As children, we're all taught to turn off the lights behind us as we leave an empty room. But it seems Norwegians have taken that lesson one step further. Along a 5.5-mile stretch of road in Hole, Norway, smart streetlights automatically dim when nobody's around—then come back to full power...

Ten years ago, energy security may have been as much a driving force behind electric cars for U.S. policymakers as climate change. Now, with continuous growth in domestic oil and gas production over that period, you just don't hear energy security discussed as much. Scientists agree that the...

We often speak of methods and technologies we can employ as a society to curb climate change, either by reducing carbon emissions or through other means. But less frequently do we talk about them in real terms, including how much excess carbon these methods and technologies can pratically remove...

In discussions of climate change, much of the focus has been on the combustion of fossil fuels: coal, oil and its gasoline and diesel-fuel derivatives, and natural gas. Collectively, the trillions of tons of carbon dioxide emitted into the atmosphere by man since the start of the industrial...

China has taken a major step toward cleaning up the new cars sold in the country beginning January 1. As numerous countries debate plans to end sales of fossil-fuel vehicles completely at points in the future, China has now forced the end of production for some 553 models, starting Monday. The...