Swiss researchers dish up the dirt on petrol
Diesel vehicles are to blame for lots of particulate matter, but modern petrol engines produce 100 times more. That’s the conclusion of researchers at the Bern University of Applied Sciences in Nidau. (SRF/swissinfo.ch)
You can find an overview of ongoing debates with our journalists here. Please join us!
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.