World switches off to save planet in "Earth Hour"
[ 2009-03-30 16:42 ]
A combination picture shows a view of the Hong Kong's financial district's (L-R) Bank of China Tower, Cheung Kong Centre, HSBC headquarters, Standard Chartered Bank and Legislative Council before (top) and during Earth Hour March 28, 2009. [Agencies]
A combination picture shows the Beijing skyline before (top) and after the lights were turned off for Earth Hour March 28, 2009. [Xinhua]
A combination of two pictures shows the Singapore financial district 30 minutes before (top) and at the start of Earth Hour at 8:30pm (below) March 28, 2009. [Agencies]