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Leonardo DiCpario may be in a race to nab his first Oscar for his work in "The Revenant," but this week he's only worried about climate change.

A spokesperson from the Vatican confirmed to Us Weekly that the two had a private, 15 minute meeting on Jan. 28.

While details of the conversation remained private, it's widely speculated that Leonardo and Pope Francis talked about an interest they are both invested in: climate change.

"The actor gave the Pope a book of art from the Dutch Renaissance painter, Hieronymus Bosch, and at the end of the encounter, DiCaprio kissed the Pope's ring, and, in Italian, thanked the Holy Father for meeting with him," the spokesperson did reveal.

Leonardo DiCaprio has long been a champion for environmental causes.

"My career has given me so much from a material standpoint," Leonardo recently told Parade. "I feel that I absolutely need to give back in whatever capacity I can. It's my moral obligation."

Most recently, the 41-year-old actor donated $15 million from his foundation for conservation efforts around the world.

Similarly, Pope Francis has called on wealthy countries and leaders to deal with climate change.