Report was with ministers in 2015 but only published three years later, days after a key fracking permit was awarded
Defra releases new code of practice for tackling ammonia emissions as part of latest air quality push
Evidence sought from industry on how to reduce impact of microfibres from vehicle tyres and brakes on air quality and the environment
China formally withdraws from early phase of high profile CORSIA carbon offset, just as government unveils sweeping new pollution crackdown
BREAKING: Government wins expansion vote following passionate debate in the Commons, but obstacles remain
Government expected to win approval for third runway, but questions over climate impact, environmental safeguards, and Boris Johnson's whereabouts remain
More than 4.5 million affected, says UN group, while tests suggest children's shorter height increases exposure on busy roads
On Clean Air Day, West End Company's Dan Johnson argues nature has a crucial role to play in cleaning up London's air
Mayor announces plans for 10-fold increase in capital's zero emission double decker buses when 68 are added to fleet next summer
Government response to joint committee report on air quality fails to allay MPs' concerns over public health impact of air pollution