Earth Hour 2012

The Acropolis hill is pictured with its lights switched off during the 'Earth Hour'. Landmarks around the globe were plunged into darkness for the annual Earth Hour campaign, leading a global effort to raise awareness about climate change

The Acropolis hill is pictured with its lights switched off during the 'Earth Hour'. Landmarks around the globe were plunged into darkness for the annual Earth Hour campaign, leading a global effort to raise awareness about climate change