From Harrison Ford to Leonardo DiCaprio: Nine celebrity climate-change activists you need to follow

Following Harrison Ford delivering an 'apocalyptic climate change warning', here are eight other celebrities who are just as passionate about the environment

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There is no doubt that climate change is an issue backed by many a famous face, from vocal Greenpeace activist Emma Thompson to Leonardo DiCaprio, who launched his first environmental non-profit organisation in 1998.

Click through our gallery to read what nine famous celebrities / activists have to say about preventing climate change. 

Ahead of Harrison Ford's arrival to Dubai for the World Government Summit, and in the days following his "apocalyptic climate change warning", here we look at the other celebrities who make a point of speaking out about climate change and environmental issues.

Beyond Harrison Ford

Most famous, perhaps, is Leonardo DiCaprio. When winning his Oscar for The Revenant in 2016, he used his speech as an opportunity to talk about climate change on a world stage.

“We need to support leaders around the world who do not speak for the big polluters, but who speak for all of humanity, for the indigenous people of the world, for the billions and billions of underprivileged people out there who would be most affected by this.

“For our children's children, and for those people out there whose voices have been drowned out by the politics of greed.”

DiCaprio and Ford are far from alone in the fight against climate change.

The likes of Emma Thompson, Dia Mirza and Mark Ruffalo are all known for speaking out about environmental issues regularly, with both Thompson and Ruffalo regularly seen at anti-fracking protests in both the UK and USA, too.