Recall expansion: Ram truck tailgates might open when they aren't supposed to

More than 2 million older Ram trucks have been recalled because of defects that could lead their tailgates to open unexpectedly.

The latest announcement is an expansion of a recall from this spring, but the updated recall is larger, covering an additional 693,128 trucks and adding to a separate 1.1 million truck recall announced last year. Together, the recalls cover more than 2 million trucks. read more »

Diesel cars emit more air pollution on hot days, study says

Emissions rose 20-30% in Paris when temperatures topped 30C, raising urgent questions as the climate gets hotter

Emissions from diesel cars – even newer and supposedly cleaner models – increase on hot days, a new study has found, raising questions over how cities suffering from air pollution can deal with urban heat islands and the climate crisis.

Research in Paris by The Real Urban Emissions (True) initiative found that diesel car emissions of nitrogen oxides (NOx) rose by 20% to 30% when temperatures topped 30C – a common event this summer.

Emissions from a range of vehicles were found to be many times higher than those declared by manufacturers in laboratory tests, confirming earlier findings following the 2015 Dieselgate scandal, in which Volkswagen cars were found to emit 40 times more NOx on the road than during laboratory tests. read more »