After last year's u-turn over its noisy biodegradable chip packets, Frito-Lay has returned with a quieter alternative

Pioneering project highlights renewable energy potential of reclaimed landfill sites

Leading academic bodies set out plans for wide-ranging ocean fertilisation research

New paper outlines potential to tap new generation of deep geothermal wells

Small losses offset by 95 per cent increase in revenues as car sales picked up towards the end of 2010

Conglomerate predicts modular tower design could help reduce turbine costs

Republicans unlikely to be impressed despite deep cuts to environmental programmes

Extent of Republican climate scepticism laid bare as GOP uses committee hearing to step up attacks on EPA

Vice president Joe Biden unveils $53bn high-speed rail master plan

Researchers at Oak Ridge National Laboratory hail potential for photosynthesising solar cells