Opinion

Professor Christopher Barnatt of Nottingham University Business School

Donna Hume questions David Cameron's claims that shale gas offers Europe a chance to reduce its dependence on oil and gas imports from Russia

Forum for the Future's Stephanie Draper argues that it is only by collaborating that businesses will be able to tackle global sustainability challenges

Friends of the Earth ventures to the Isle of Man and finds a community boasting huge clean energy potential and worrying fossil fuel lock-in

Tim Minett warns that the debate over the sustainability of bio-energy is in danger of becoming oversimplified

Jos Dings of Transport & Environment defends green campaigners' record in driving cleaner EU transport policies

The CBI's Nicola Walker argues that only an ambitious EU climate change package can deliver investor certainty the business community needs

Why do the costs of building nuclear appear to be rising over time, instead of coming down, as you would expect from other technologies?

Matthew Spencer and Nick Mabey argue the really critical long term policy signals for the green economy will not be found in the Chancellor's red box

The RSPB's Harry Huyton defends conservation group's 10 recommendations for better fracking regulations, dismissing industry claims they are unnecessary