1. United Nations Framework Convention on Climate Change available from https://unfccc.int/essential_background/convention/items/6036.php accessed 21 March 2017.
2. Ottmar Edenhofer ,Ramón Pichs-Madruga, Youba Sokona Climate Change 2014 Mitigation of Climate Change Working Group III Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change.
3. NRMCA Publication Number 2PCO2 2008 National Ready Mixed Concrete Association available from nrmca.org accessed 21 March 2017.
4. ALGAE-GHG - Carbon Dioxide Mitigationfrom Greenhouse Gases in Algal Photosynthetic Systems LIFE10 ENV/RO/000734.
5. UK Government Department of Communities and Local Government UK.