In response to consumer wishes for alternative energy generation, Germany’s railway,the Deutsche Bahn, in October 2011 set its sights on a goal of 100% sustainable energy sources by 2050 as it announced that it would begin harvesting solar power from the roofs of its nearly 6,000 stations as well as partnering with wind and hydroelectric power suppliers.

http://www.treehugger.com/files/2011/10/german-trains-100-percent-renewables.php
http://www.nytimes.com/2011/08/22/business/energy-environment/trains-that-run-like-and-on-the-
wind.html?_r=2&ref=energy-environment

A report commissioned by the British government released on October 19, 2011 states that although some 75% of migrations due to climate change will occur within a nation's borders, governments must act now to safeguard against situations where residents move toward areas with even greater degrees of vulnerability.  

http://www.bbc.co.uk/news/science-environment-15341651
http://www.egovmonitor.com/node/44280