If you live within earshot of the M1 in Sheffield, don't be alarmed if you spot a furtive character attaching small plastic tubes to lamp posts and garden fences across the neighbourhood. It's probably just Neil Parry, a clean air campaigner, and he's not up to anything sinister, unless you are a developer trying to build a new road or a supermarket planning a lorry-filled depot.

Controversial consortium was ‘put through its paces’ before getting contract extension

From solar, wind and hydro power – to one potential fracking project, Tom Bawden reports on schemes that earn their keep

Scientists have applied for formal permission to grow plants containing omega-3 fatty acids found in fish oil

Nadhim Zahawi says 'massive, irreversible damage' is being caused

Food production’s effect on water supplies must be investigated and properly recorded, warns Professor Tony Allan

Owenstown, in Lanarkshire's Douglas Valley, could become Britain's first new garden city for nearly a century

Sea Shepherd would aim to scupper missions by any means, whether it was throwing foul-smelling acid or sinking ships. At what point did you join?

Renewable energy can be a good option for investors as subsidies wind down and fundraising cranks up. By Sarah Davidson

In an agricultural reform due this week, the Government must decide how much funding to transfer from farmers to green schemes

Coalition forges ahead with licences

Supermarket tells MPs people must be ‘educated’ about waste and fresh food

Hefty tax breaks for fracking firms announced by the Chancellor yesterday immediately came under fire from MPs and environmental groups, who warned that they were “unwarranted” and could even be illegal.

The Chancellor's intervention has provoked dismay within the renewables industry which warned energy prices would rise as a result

It will accelerate from 0 to 60mph in less than three seconds, before topping out at close to 140mph, but unlike most race cars, the all-new Spark-Renault isn’t a high-octane monster but an electric green machine that could boost the electric car industry.