London

Demand Logic and SEaB Energy win £100,000 as part of the latest phase of the Cognicity smart cities challenge

Mayor predicts Tory government will build on London's carbon-cutting success and prove to be the 'greenest ever'

Move to ditch coal companies from £16m endowment marks school as first health organisation in the world to join divestment movement

Lambeth Labour council launches pilot to fine taxi and bus drivers for idling

Mayor dismisses call to divest £4.8bn pension fund from oil, coal and gas saying UK needs fracking to avoid relying on energy imports

BusinessGreen runs down the key reactions to the Supreme Court's landmark judgement today

Yes, Saharan dust may play a role, but the primary cause of our dangerous air is the policy and technology choices we all make

As officials warn vulnerable people to stay indoors, the Green Party leads calls for bolder action to improve air quality

Advertising Standards Authority says TfL misled public in claiming planned Ultra Low Emission Zone would halve traffic pollution

New Which? report warns customers are feeling ripped off and baffled by emerging technology