Opinion

Labour's Alan Whitehead warns rules to improve the efficiency of rented accomodation include a worrying loophole that will leave many tenants living in cold and draughty homes

Matthew Farrow of the Environmental Industries Commission reveals how the association is investigating whether green issues are getting a fair hearing in 'smart city' plans

Martyn Jones of Alliance Trust Investments reveals how the company has attempted to work out which is the greenest fabric

Baroness Verma's speech on the creation of an "energy saving society" - in full

Labour's Barry Gardiner says the Lib Dems' proposed Green Laws are not enough to reverse the decline in the environment the coalition has overseen

The RSPB's Martin Harper reveals how the green communities' proposals for next year's election are so compelling they could win over Malcolm Tucker

Stephanie Draper of Forum for the Future reveals how systems thinking could help sustainability executives deliver the real corporate transformations they crave

The REA's Dr Nina Skorupska explores the many varied materials that renewable technologies produce and the role of certification in building markets for these products

Policy Exchange's Guy Newey argues technology tribalism is understandable but counter-productive, which is why we need a market-based approach to decarbonisation

National political parties are failing on climate change, argues Tom Burke, hope increasingly comes from local government