Microsoft

Yahoo, International Paper and Yelp also follow in steps of Microsoft by quitting right-wing lobby group

IT giant said to have ended links with controversial American Legislative Exchange Council lobby group

Companies want to help people set up repair businesses to save the environment

Efficient flat-screen TVs shrinking power use, but new ultrahigh-definition devices and games consoles may drive consumption upwards

Tech giant becomes first buyer of carbon credits for Makira REDD+ scheme

New innovations from the tech giants will allow businesses to make their cloud computing more environmentally sound

Second bond launched by World Bank-backed International Finance Corporation to fund climate smart projects is heavily over-subscribed

Entire output of 110MW wind project in Texas bought up by tech giant, in move that displaces coal from supply chain

Italian start up harnesses power of the cloud to take green building modelling into the mainstream

Having cut energy use at its headquarters, Microsoft teams up with Accenture to expand its smart buildings programme