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Few lights remain switched on for an hour in the financial district of Makati city, east of Manila in the Philippines, during last year's Earth Hour.
Few lights remain switched on for an hour in the financial district of Makati city, east of Manila in the Philippines, during last year's Earth Hour.
Image: BULLIT MARQUEZ/AP

INFOGRAPHIC: How much energy could Earth Hour actually save?

Will you be turning off the lights at 8:30pm?
Mar 23rd 2013, 7:50 PM 19,801 30

TONIGHT MARKS the seventh annual Earth Hour – where people across the world turn off all non-essential lights for an hour to raise awareness about the threat of climate change.

Originating in Australia in 2007, the event has been marked worldwide since 2009 – when the Irish government got in on the act and started turning off the lights at Government Buildings and other major public landmarks.

The folks at Jones Oil – who two weeks ago helped us illustrate Ireland’s oil usage – have put together another infographic to put into context how much energy would be saved if everyone around the world turned off unnecessary lights for just 60 minutes.

(We recommend that readers on mobile devices click here to view the image full-size, and turn their devices to landscape mode.)

Infographic: How does oil get to Ireland?

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Gavan Reilly

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