(CNN) President Barack Obama joined Facebook on Monday and said he wanted his account to be "a place where we can have real conversations," diving right in with his first post on climate change.

In that post, Obama took Facebook users on a walk through his back yard at the White House and calling on Americans in a video "to preserve this beautiful planet of ours."

"Not only do I want future presidents to be able to take walks like this," Obama said in a video post on his profile. "I want to make sure that the American people are able to enjoy the incredible national parks, incredible beauty, the mountains, the oceans, that have been one of the greatest gifts we've ever received."

Hello, Facebook! I finally got my very own page. I hope you'll think of this as a place where we can have real conversations about the most important issues facing our country -- a place where you can hear directly from me, and share your own thoughts and stories. (You can expect some just-for-fun stuff, too.)I'm kicking it off by inviting you to take a walk with me in my backyard -- something I try to do at the end of the day before I head in for dinner. I say this often, but that's because it's always at the front of my mind: We've got to preserve this beautiful planet of ours for our kids and grandkids. And that means taking serious steps to address climate change once and for all. Now, we've made a lot of progress to cut carbon pollution here at home, and we're leading the world to take action as well. But we've got to do more. In a few weeks, I'm heading to Paris to meet with world leaders about a global agreement to meet this challenge.I hope you'll join me in speaking out on climate change and educating your friends about why this issue is so important. At a time when nearly three in four adults online use Facebook, this feels like a great place to do it. Share your thoughts in the comments, and pass this message on to folks you think need to see it.If we're all in this together, I'm confident we can solve this and do right by future generations. Posted by President Obama on Monday, November 9, 2015

The President chose Facebook because "at a time when nearly three in four adults online use Facebook, this feels like a great place to do it," he writes.

Meanwhile, the "Barack Obama" Facebook account, which has over 45 million followers, continues to be run by Organizing for Action.