OMA’s Roadmap 2050 is a guide to a low-carbon Europe.
See links below for articles and access to documents:
http://www.archdaily.com/56229/roadmap-2050-a-practical-guide-to-a-prosperous-low-carbon-europe/
http://ec.europa.eu/energy/energy2020/roadmap/index_en.htm
http://www.guardian.co.uk/artanddesign/2010/may/09/roadmap-2050-eneropa-rem-koolhaas