Freedom of information papers reveal mayor ignored a 2009 request to 'keep the congestion charge and other initiatives'
Another four years of Boris Johnson would do little for the growth of London's low-carbon businesses
Ken Livingstone joins calls for a public inquiry into London's failure to meet air quality targets
Conservative London mayor and candidate for the next term insists his policies will help grow the low-carbon economy
Conservative mayoral candidate insists he has met all his environmental pledges and boosted green business
Independent mayoral candidate wants environmental considerations to be "an intrinsic part of the way London operates"
Lib Dem Brian Paddick launches his manifesto with pledges to make buses and taxis electric and create a clean air zone
London mayoral candidate for Labour secures backing from Green Party for second preference votes
Party urges supporters to make Labour's Ken Livingstone their second-choice candidate
London Mayoral candidate Brian Paddick pledges to make London a quieter and cleaner place to live and work