Actor Leonardo DiCaprio has joined the popular social media site Instagram.

The 39-year-old opened his account Tuesday just in time for his visit to the United Nations Climate Summit, reports eonline.com.

DiCaprio already posted a wide variety of photos on the site. His first Instagram post was with United Nations Secretary-General Ban Ki-moon.

"Today (Tuesday), I have the privilege to speak at the United Nations #Climate2014 Summit where world leaders are expected to announce the bold steps they will take to tackle climate change," he captioned. "Thank you Secretary-General Ban Ki-moon."