Greenpeace activists hang three large size banners on a building in the booming western part of Zurich. The message: "Solarpotenzial ungenutzt! Solarmacher.ch" (translated: Solar Potential Untapped! Solarmaker.ch). Greenpeace draws attention to the vast untapped potential of solar energy.09/11/2012
© Greenpeace / Ex-Press / Stephan Bösch