Big Apple commits 10 per cent of energy budget to slashing emissions by 30 per cent by 2017
LED Lighting Fixtures Inc talks up new super-efficient bulb that will deliver firms cost savings within just over a year
Organisers unveil sustainability strategy, including plans for a low-carbon Olympic flame
Philips is to buy US lighting firm Genlyte in a $2.7bn deal designed to accelerate its push into energy efficient lighting
Carbon Trust study finds that micro combined heat and power systems can deliver carbon savings if used in properties with consistent heating requirements
But environmentalists claim proposals will be difficult to enforce and will not stop deforestation of tropical rainforests
New voluntary scheme plans to verify and rate the quality of energy providers' "low carbon" tariffs
Move designed to tackle deforestation caused by expanding palm oil plantations
Software company argues its green office has delivered plenty of benefits, one of which is healthier staff
US publishing giant turns over new leaf with targets for the use of recycled and FSC-certified paper