The document, signed by over 40 businesses and NGOs, sets out how the UK wants to see the emissions trading scheme develop after 2012.
Environment Secretary David Miliband said: "Businesses rightly want long term certainty to influence their investment decisions. EU environment ministers have responded positively to this call by agreeing to challenging emissions cuts up to 2020."
The Manifesto can be found at: www.defra.gov.uk/environment/climatechange/trading/eu/future/index.htm