Fallbrook Technologies raises $25m funding to adapt highly efficient bicycle gearing technology for electric cars, conventional vehicles and wind turbines

Keep Britain Tidy calls on fast food industry to do more to tackle brand-damaging High Street litter

Obama signals that increase in renewable capacity, huge energy-efficiency building programme and smart grid rollout will play central roles in "Green New Deal"

Boris Johnson has confirmed he will back and fund legal fight by alliance of London councils is third runway gets green light

Research claim that ocean's ability to absorb CO2 has resulted in a "50 per cent" discount on the effects of climate change – but that discount could now be under threat

Manufacturer backed Warren Buffet to debut first plug-in hybrid production model in Detroit later today

An advertising campaign in the US and a launch in the UK to promote fuel-efficient diesel cars

Government warns schools and hospitals that they have just a few months left to access up to £24m in green building grants

US airline successfully undertakes test flight powered with blend of algae and jatropha-based biofuel