<ul><li>Earth Hour is an annual global event that takes place on the last Saturday of March, and this year, it falls on March 25th.</li><li>Millions of people from over 190 countries and territories are expected to participate.</li><li>The event encourages individuals to turn off all lights and electrical appliances for one hour, from 8:30 pm to 9:30 pm local time, to raise awareness of climate change challenges and energy conservation.</li><li>The World Wide Fund for Nature and its partners initiated Earth Hour in 2007 as a symbolic lights-out event, encouraging people globally to switch off their lights and spend an hour doing something positive for the planet.</li></ul>

Get Ready to Power Down: 'Earth Hour' kicks off tonight at 8:30 PM

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