Spider-Man stars prepare for Singapore's Earth Hour

The Amazing Spider-Man stars Andrew Garfield and Emma Stone have joined in the Earth Hour festivities in Singapore:


#Singapore getting ready for #EarthHour in an hour! Are you ready to be a Superhero for the Planet with #SpiderMan? http://t.co/fHeFpfL4D5



UK landmarks go dark for Earth Hour

Landmarks across the UK have gone dark for Earth Hour, with lights switched off from 8.30pm for an hour, as part of a global effort to raise awareness about climate change.