UK government's flagship energy efficiency programme remains largely unknown just days before its launch

Geoengineering method could reduce emissions but would require huge mining effort and alter balance of the oceans

A 'vast majority' want a government-set target on decarbonising the electricity sector, said the energy and climate secretary

Environment minister Richard Benyon promised the government would make a decision in 2012 on a bag charge in England

MPs raise concerns about terms of licensing system for constructing transmission lines

Figures from the Institution of Mechanical Engineers show as much as 2bn tonnes of food never makes it on to a plate

Grounding of Kulluk rig the latest in a series of mishaps, raising possibility that Shell may be forced to re-evaluate its proposals

Experts say cost will undermine government's attempts to encourage homeowners to invest in energy efficiency upgrades

Owen Paterson tells farming conference that GM offers great opportunities but public must be reassured of safety

National Farmers Union estimates rains in 2012 cost the industry £1.3bn from poor harvests and higher food bills for cattle