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This week, thousands of cities across the globe will dim their lights at 8.30pm for an hour, joining in the world’s largest voluntary environmental action: Earth Hour.

Scheduled for the last Saturday of every March – closely coinciding with the equinox to ensure that most cities are in darkness as it rolls out around the Earth.

The growing importance of this global environmental action is reinforced by the unprecedented challenges our planet faces.

Our growing population is consuming at a rate that requires much more than one planet can provide. We are not living sustainably. While our carbon footprint grows, biodiversity is shrinking while our hunger for natural resources expands. Living beyond our planet’s means is putting increased pressure on food security, water security and climate security.

Earth Hour’s growth from 2 million people in Sydney, the city in which it all started, in 2007, to hundreds of millions in more than 5000 cities across more than 130 countries and territories shows that individuals across the globe recognise the challenges our planet is facing.

This year Earth Hour organisers hope to see this initiative grow further, with new countries taking part and landmarks from Las Vegas, Times Square, the Brandenburg Gate and the Eiffel Tower to the Burj Khalifa and even the International Space Station committing to switch off for the planet.

But the real value of Earth Hour does not lie in its sheer scale. The real value is in individual, grassroots actions. When you consider the potential of hundreds of millions of people all making small changes, it gives us hope for the future of our planet.

Earth Hour is about much more than an hour of darkness, it is about people showing their commitment to sustainability and environmental action. It is about individuals moving beyond NGOs, governments and businesses to express their personal commitment to living more sustainably.

So just remember – do your bit this week for the planet and switch off.  For further information have a look at



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