One of the most sensible protest movements I have seen. Led by Solar Mosaic, an organization that tries to promote the spread of solar energy use in communities, Occupy Rooftops (also known as Community Solar Day) encourages people to take charge of rooftops that are a prime location for solar panels. Last week people all over the world (including Jerusalem and Tel Aviv) did just that.
http://www.greenprophet.com/2011/11/middle-east-occupy-rooftops/