Exactly. The noxious tailpipe emissions in a city are usually from diesel trucks, small vehicles like motorcycles (small or absent catalytic converters), modified vehicles (catalytic converter removed or diesel reprogrammed to smoke), but not modern gasoline ICE vehicles.
The love for diesel engines in many European countries was always confusing to me.
PM2.5 is also a broad category of particulates that come from many sources. The PM2.5 levels in the air depend on many sources, with wind being a major factor in changing PM2.5 levels. It’s hard to draw conclusions when a number depends on the weather and a lot of other inputs.
https://arstechnica.com/gadgets/2016/10/building-android-a-4...
Why? If they are good enough that people choose to use them in their publications then why do you assert this?
Java's got byte (8 bits) and short (16 bits)? (Still signed, though, of course.)
Unless those are actually padded to 32 bits in the VM or something.
They are.
Europe began embracing diesels 40yr ago when they were noisy and stinky and they did it because they taxed the crap out of fuel so people rightfully prioritized buying vehicles that got better fuel economy.
Giving a crap about CO2 is a recent thing.
[1] https://www.gov.uk/vehicle-tax-rate-tables/rates-for-cars-re...