​Leonardo DiCaprio named U.N. Messenger of Peace

The Wolf of Wall Street star Leonardo DiCaprio has been named as a U.N. Messenger of Peace on Climate Change.

Describing the designation as “an honour,” the eco-friendly actor released a statement about his commitment to fight global warming.

“I feel a moral obligation to speak out at this key moment in human history — it is a moment for action,” he wrote. “How we respond to the climate crisis in the coming years will likely determine the fate of humanity and our planet.”

The Prius-driving actor, a long-time advocate for environmental causes, will speak at the U.N. Climate Summit on Sept. 23.

Read more: Leonardo DiCaprio's 10 best movie roles

In February, Leo gave a $3-million grant to Oceana – a non–profit that focuses solely on ocean conservation efforts – through his Leonardo DiCaprio foundation.

This past June, the 39-year-old actor announced he was donating another $7 million towards marine conservation efforts.

If all that weren’t enough, the star famously co-wrote, co-produced and narrated the 2007 documentary The 11th Hour, which speaks frankly about the state of climate change.

Other actors who have held the coveted title in the past include George Clooney, Charlize Theron, Michael Douglas and Edward Norton.

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