Leonardo DiCaprio & His Dad Attend Climate Change Summit

Leonardo DiCaprio listens intently while attending the COP21 Paris Climate Conference on Friday (December 4) in Paris, France.

The 41-year-old actor was joined by his dad George DiCaprio while attending the event, which saw a thousand mayors from different cities gather at Paris city hall to talk about climate change.

“Our world leaders are here in Paris in an effort to finalize a global agreement 20 years in the making, to finally address the very real threat that climate change poses to our planet,” Leo told the crowd (via Vanity Fair). “These leaders have met before. They met in Kyoto, they met in Copenhagen, and in cities on every continent, but each and every time, they have come up short. This time must be different, because we are fundamentally running out of time.”

20+ pictures inside of Leonardo DiCaprio at the summit…