02/29/2016 01:17 EST | Updated 02/29/2016 01:59 EST

Leonardo DiCaprio Wins Best Actor Oscar For 'The Revenant'

It took 25 years, five nominations, and eating a raw bison liver.

It took 25 years, five nominations, and eating an animal's raw liver.

But on Sunday night, Leonardo DiCaprio took the first acting Oscar of his career for his performance in "The Revenant."

DiCaprio appeared calm as he accepted his Best Actor statuette from Julianne Moore, last year's Best Actress winner for "Still Alice."

And he used his speech to draw attention to climate change, and its effects on people around the world.

"It is happening right now, it is the most urgent threat facing our entire species and we need to work collectively together and stop procrastinating. We need to support leaders around the world who do not speak for the big polluters or the big corporations but who speak for all of humanity, for the indigenous people of the world, for the billions and billions of underprivileged people who will be most affected by this."

DiCaprio's first acting credit in a feature film came in the 1991 horror movie "Critters 3."

Since then he has acted in some of the most popular films of our time, such as "Titanic," "The Departed" and "Inception."

DiCaprio's first Oscar nomination came for his supporting turn as a boy with a developmental disability in 1993's "What's Eating Gilbert Grape?," in which he starred alongside Johnny Depp.

He was next nominated for Best Actor in Martin Scorsese's 2004 film "The Aviator," in which he played eccentric airman Howard Hughes.

Two years later he was nominated for Best Actor in "Blood Diamond."

Then came another Best Actor nod for his widely-acclaimed performance in Scorsese's "The Wolf of Wall Street," about a morally decrepit investment banker.

DiCaprio went to incredible lengths to capture the character of fur trapper Hugh Glass in "The Revenant."

The actor swam through freezing rivers, slept in animal carcasses and ate raw bison liver (he's a vegetarian).

The Oscar has been a long time coming, Leo. Here's to you.

Follow Us On Twitter

Also on HuffPost

Photo gallery Oscars 2016 Red Carpet See Gallery