8 Articles
Official
Advocates: Mexico suffers 20,000 early deaths due to dirty air

Mexico had moved towards a cleaner-air mandate, but progress has stalled.

Mexico needs to update heavy-duty vehicle emissions standards to protect citizens, cut pollution, advocates say.

Report
Renault implicated in diesel emissions cheating [UPDATE]

According to a new study from DUH and the ICCT, Renault may have cheated on emissions tests for the Espace diesel minivan, which may produce 25 times the legal limit for noxious emissions.

Report
Are more diesel scandals about to erupt?

The Daily Kanban reports that 10 to 15 additional cases of automakers cheating on diesel emissions tests will be announced in the coming weeks.

Report
EU turned to US to make VW diesel scandal public

EPA May Have Been More Vigilant Than EU

Some European regulators may have known about cheat software as far back as 2011.

Study
European automakers overstate fuel economy by 40% on NEDC cycle

BMW, Peugeot Models Also Notable For Mileage Gap

Mercedes-Benz is the most common practitioner of fuel-economy overstatements, according to report.

Study
Clean diesels not so clean, apparently

PEMS Testing Shows Higher-Than-Allowed NOx Emissions

A study analyzing real-world diesel vehicle emissions finds that NOx levels from modern engines far exceed the mandated limits. However, the carbon monoxide and total carbon hydrogen numbers are where they should be.

Report
European regulators say incorrect CO2 ratings could be costing drivers $580/year

European automakers are apparently a little off in their collective emissions ratings for their vehicles. Way off, actually. To the tune of $580 in refueling costs per driver. The vehicles likely emitted 38 percent more CO2 than what they were rated at, according to Bloomberg News, which cites a report by the International Council on Clean Transportation (ICCT), and that lea

Report
BMW, Audi lead the pack on misrepresenting CO2 figures in Europe

BMW and Volkswagen are taking differing political tacks to address stricter European emissions standards that will kick in by the end of the decade, but the two German automakers appear to be moving in lockstep when it comes to not reporting accurate CO2 emissions numbers.