Move over, “Shark Week.” There is something scarier playing on our televisions.

National Geographic kicked off their first ever “Earth Week” programming on Sunday. The week is comprised of six straight days of primetime programming which focuses on the effects of climate change.

The week started with premiers of both the Emmy award-winning series Years of Living Dangerously and the Leonardo DiCaprio documentary Before the Flood.

“On the important topic of climate change, National Geographic, given its reach and reputation, is in the unique and enviable position to tell stories with real potential to make a difference in the world,” said Courteney Monroe, CEO, National Geographic Global Networks. “That is why we are making a public and passionate commitment to a full week of programming on this topic, right before the election in the U.S.”

National Geographic will continue to make Before the Flood available to viewers and voters as widely as possible. The network announced it would stream the film for free throughout Earth Week (Oct. 30 – Nov. 6) on a record number of platforms, including Hulu, YouTube, iTunes, Facebook, Twitter, and Amazon.

The documentary follows DiCaprio as he travels to five continents and the Arctic to track the devastating effects climate change is already having. Throughout the film, he speaks with top scientists, activists, and local residents, as well as world leaders such as President Barack Obama, Pope Francis, UN Secretary-General Ban Ki-Moon, Indian political activist Sunita Narain, and more.

Earth Week will continue with encore presentations of Before the Flood and Years of Living Dangerously, as well as with nature documentaries from the National Geographic Archives, such as America’s National Parks: Yellowstone, part of the organization’s year-long celebration of national parks, and Bill Nye’s Global Meltdown, part of Nat Geo’s signature Explorer series.

More information about climate change and Earth Week can be found on National Geographic.