Half a croissant, on a plate, with a sign in front of it saying '50c'
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Air-pollution

 Internal fresh air in vehicles
 
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Emergency air/oxygen systems are standard fitting in public transport planes, so is it crazy to suggest marketing/legislating them into public/private/trade vehicles in cities where other means of coping with air-pollution have failed or are failing to reduce health-maintenance costs?

A bottom-of-the-cliff measure of course but the same applies to a related practice - fitting airbags.

[Superficial search done. Found "Goodie" had the germ of the idea for motorbike helmets]

—rayfo, Jul 11 2001

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