London

Washington confirms it will not reverse policy of refusing to pay for " congestion tax", despite owing more than £3.4m in unpaid fines

Industry insists it remains on track to beat zero carbon home target, as mayor of London unveils plan for new £4m fund

London Array consortium says loan application is one of a number of funding options

Plug-in hybrid Prius and all-electric Citroën offered as part of new Westminster car club

E.ON, Dong and Masdar give green light to plans after government steps up financial support for offshore wind

Mayor pledges £3m to fund 10 areas which must commit to deliver carbon reductions

TfL says bike-hire scheme using 400 docking stations and 6,000 bicycles will launch in capital next May

Mayor reportedly fuming over prime minister's premature announcement

Soaring costs of offshore wind installation and lack of credit drives developers to European bank

Leaked proposals to cut 20 jobs at city hall call mayor's commitment into question