The Sustainability Plan, 'Towards a one planet 2012', was launched with the help of double Olympic champion James Cracknell.
It covers five key themes - climate change, waste, biodiversity, inclusion and healthy living - and sets out how they will be achieved in preparation, staging the Games and legacy.
The plan is far-reaching, from reuse of materials during construction to sourcing local foods during the Games to improving job prospects for the local community in the long-term.
It was approved by all members of the Olympic Board – representing the Government, the Mayor of London, the British Olympic Association and London 2012 itself. The plan is a live document and will be updated annually as the project progresses.
It will be monitored by an independent body, the Commission for a Sustainable London 2012.
London 2012 Chair Sebastian Coe said: 'The Olympic and Paralympic Games can set agendas and with Towards A One Planet 2012, we hope to use the power of the Games to drive change – behaviourally and in the way big events are staged in the future.
Sustainability underpinned our bid and remains an important element of our preparations and our vision for the legacy of London 2012.'