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http://berkeley.edu/news/media/releases/2008/03/10_chinaco2.shtml

Boyle, Godfrey; Renewable energy – power for a sustainable future (second edition), Oxford University Press, 2004

Brain, Marshall; How Electric Cars Work, 2006
http://auto.howstuffworks.com/electric-car.htm

Brower, Michael and Warren Leon; The Consumer’s Guide to effective Environmental Choices, Three Rivers Press, 1999

Godall, Chris; How to live a low-carbon life- the individual’s guide to stopping climate change, Earthscan, 2007

EasyJet, Carbon Offsetting, 2006
www.easyjet.com/en/Environment/carbon_offsetting.html

Employee Transportation Coordinator Handbook, 1999
www.resourcesaver.org/file/toolmanager/O16F7812.pdf

European Commission; Green Paper – Adapting to climate change in Europe – options for EU action, 2007
http://eur-lex.europa.eu/LexUriServ/site/en/com/2007/com2007_0354en01.pdf

European Environment Agency – Indicator Management Service; Atmospheric greenhouse gas concentrations (CSI 013), 2008
http://ims.eionet.europa.eu

Food and Agriculture Organisation; Livestock a major threat to environment, 2006
www.fao.org/newsroom/en/news/2006/1000448

Intergovernmental Panel on Climate Change (IPCC); IPCC Fourth Assessment Report (AR4), 2007
www.ipcc.ch

International Energy Agency (IEA); Renewables in global energy supply – fact sheet, 2007
www.iea.org/textbase/papers/2006/renewable_factsheet.pdf