Why this earth hour?

For the past 10 years, people around the world have come together every Earth Hour to support efforts to tackle climate change. Together, we have created a powerful movement that helped deliver strong global commitments to tackling this threat. Climate change remains a big challenge for us all. But another urgent threat now demands our attention - the loss of nature. These two combined threats mean we must act - and now. It all starts with Earth Hour 2019. Emirates Nature-WWF’s Earth Hour 2019 is an amazing opportunity for you to start changing the planet for the better - join millions around the world to turn off the lights and speak up on why nature matters.