London mayor urges government to take action, saying pledged settlement in emissions cheating scandal is far too low
New Transport for London business plan to increase spending on improving air quality to £875m over five years
Mayor's Office says new £154m a year investment plan for cycling represents nearly double the amount spent under Boris Johnson
Mayor of London pledges no more new diesel buses as he unveils hydrogen bus in London
Entrepreneurs could win £20,000 for green business ideas to help tackle capital's 'urgent' environmental problems
'I want all my environmental programmes, across the board, to stimulate growth and market opportunities in this growing sector, creating the green jobs of the future,' says London Mayor
September 2015 memo by former Number 10 adviser emerges suggesting government "did not yet have answer" on air quality
Fracking's about as far from locally controlled energy as you can get. We can do so much better, says David Powell at the New Economics Foundation
London mayor launches second phase of air-quality consultation proposing introduction of ULEZ zone in 2019 and charges for older, more polluting vehicles entering the capital from October 2017
London Mayor promises raft of new river crossings that encourage cycling, walking and use of public transport, including proposals for a 'cycle-bus' for riders using planned Silvertown Tunnel