Party loses six seats, raising prospect of it leading a minority government or forming a coalition with the Scottish Greens
As London prepares to go to the polls to choose its new mayor, we round up the main candidates' green policies, from pollution proposals to energy ambitions
To mark the publication of it's latest report, Up in the Air: Part 2, Policy Exchange's Richard Howard sets out a 10 point plan to solve London's air pollution crisis
London Sustainable Development Commission argues West London site is ideal location for a pioneering new clean tech cluster
Plan would see most polluting vehicles banned from Central London and 'bad air days' warnings given to Londoners
The next London mayor will have the power to put rocket boosters under the entire UK's green economy - here are 10 proposals that could turn the capital into a low carbon powerhouse
Greener London hustings saw a broad consensus on many environmental issues, though some differences still emerged
New poll shows cleaning up capital's air is most important sustainability priority for residents, followed by improving public transport systems
League table comparing renewable energy performance of London boroughs crowns Lewisham the best of a bad bunch
At the start of Greener London Week, the UK's leading environmental groups call for the next London mayor to deliver a more sustainable capital city