First Paris, then a pair of German cities, and now the Eternal City. Two weeks ago, the mayor of Rome announced on her Facebook page that the city would ban diesel cars altogether by 2024. It's not clear whether the ban applies solely to the older, most-polluting diesels as it does already in Paris, or to any vehicle with a diesel engine. CHECK... Rome joins European ban-diesel bandwagon after German court ruling
First Paris, then a pair of German cities, and now the Eternal City. Two weeks ago, the mayor of Rome announced on her Facebook page that the city would ban diesel cars altogether by 2024. It's not clear whether the ban applies solely to the older, most-polluting diesels as it does already in Paris, or to any vehicle with a diesel engine. CHECK... 
![Exhaust emissions from tailpipe [photo: Simone Ramella, 2005, used under Creative Commons 2.0]](https://images.hgmsites.net/tmb/exhaust-emissions-from-tailpipe-photo-simone-ramella-2005-used-under-creative-commons-2-0_100644014_t.gif)
That huge intake of breath you may have heard from across the Atlantic Ocean was the sound of German carmakers gasping at a court decision handed down on Tuesday. After a week's delay in issuing its ruling, a German court decided that individual cities in the country may ban vehicles with diesel engines to reduce air pollution. The decision could... 
Last November, the Environmental Protection Agency said it would rescind a rule that banned companies from fitting outdated, older, and dirtier diesel engines into brand-new "glider" chassis-cab trucks. Among the many regulations to limit emissions and other forms of pollution that EPA administrator Scott Pruitt has axed, this one was particularly... ![First all-electric articulated bus in the world, Palmdale, CA, by Nate Pitkin [CC BY-SA 4.0]](https://images.hgmsites.net/tmb/first-all-electric-articulated-bus-in-the-world-palmdale-ca-by-nate-pitkin-cc-by-sa-4-0_100638880_t.gif)
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 fleets, especially those operating in low-income... 
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 vehicles, from a wide range of automakers, can no... 
In grade school, students commonly ran through the halls when teachers or other school staff weren't looking. Signs forbidding the act of sprinting past lockers did little to deter the practice, since there was no incentive not to run unless someone present was enforcing the rule. The same can be said for industrial polluters and environmental-law... 
The EPA recently announced it will roll back the Clean Power Plan, one of former President Obama's milestone efforts to fight climate change, and now the agency plans to axe another rule limiting emissions. Next on the chopping block is a regulation that limits emissions from large trucks and their components. Remarkably, the regulation that EPA... 
It was quaint and adorable when Norway did it, saying it would end sales of cars with internal-combustion engines by 2025. The Netherlands followed suit, with little fanfare. More recently, France and the U.K. have enacted various forms of bans on non-electrified vehicles, on varying schedules. Now that China has said it's considering timetables... 
It was quaint and adorable when Norway did it, saying it would end sales of cars with internal-combustion engines by 2025. The Netherlands followed suit, with little fanfare. More recently, France and the U.K. have enacted various forms of bans on non-electrified vehicles, on varying schedules. Now that China has said it's considering timetables...