NewsLondon's ULEZ Cut Kids' Lung Problems by 36%A Lancet study tracking 3,400 London schoolchildren found their lung impairment fell 36% after the Ultra Low Emission Zone was introduced — and they've now caught up with kids in cleaner cities.
NewsParis Air Pollution Drops 55% After Two Decades of Replacing Roads With Bike Lanes and TreesAn independent analysis confirms that Paris's bold two-decade push to remove parking spaces, plant 130,000 trees, and build 1,400 km of bike lanes has slashed fine particulate pollution by more than half.