Earth Hour 2015 Round up

Earth Hour is the largest symbolic mass participation event in the world and involves people around the world switching off their lights for one hour as a demonstration of concern for the environment. The worldwide movement is organised by the World Wide Fund for Nature (WWF).

Humanity consumes huge amounts of energy every day, around 62,000 terajoules per hour. The energy to power the world comes from a variety of sources whereof only 13% of the energy sources used are renewable. The rest comes is comes from oil (32%), coal/peat (27%), natural gas (21% and nuclear (6%).[1]

Energy consumption of the world
Total Primary Energy Consumption (Quadrillion Btu)


Earth Hour do not engage in the measurement of energy or carbon reduction levels, they try to encourage individuals, businesses and governments around the world to take accountability for their ecological footprint. They engage in dialogue and resource exchange that suggests real solutions to our environmental challenges.[3]

In addition to creating awareness, supporters worldwide use Earth Hour to promote climate change solutions. This includes everything from 'Earth Hour Loans' that support solar power installation to 'Earth Hour Forests' aimed at fighting deforestation. In 2014 alone, Earth Hour supporters raised funds to plant million of trees, promote the use of fuel-efficient stoves and reduce the carbon footprint of thousands of schools.[4]

Change over time 2014 2015 Change
Participating countries & territories 160 172 +7,5%
Countries that have gone beyond the lights out event 60 66 +10%

When we look back on the 28th of March this year, we can see some truly amazing changes in awareness and we sincerely hope to see the popularity of Earth Hour continues to grow!




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