Vermont Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I) on Sunday announced that he and Bill Nye will hold a Facebook Live conversation Monday on climate change.

"Join me and Bill Nye at 10:30 a.m. ET tomorrow on Facebook Live for a conversation on climate change," Sanders tweeted.

Join me and Bill Nye at 10:30 a.m. ET tomorrow on Facebook Live for a conversation on climate change. https://t.co/TIdQMUk3ML pic.twitter.com/QjISPqoj50 — Bernie Sanders (@SenSanders) February 27, 2017

Sanders has been an outspoken advocate of fighting climate change and creating green policies. It was a major part of his Democratic campaign for president in 2016.

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He has also been critical of the Trump administration for appointing former Oklahoma Attorney General Scott Pruitt to head the Environmental Protection Agency, as Pruitt is a climate change doubter with close ties to the oil industry.

During Pruitt's confirmation hearing, Sanders grilled him with questions about the environment.

“Ninety-seven percent of the scientists who wrote articles in peer-reviewed journals believe that human activity is the fundamental reason we are seeing climate change. Do you disagree with that?” Sanders asked at Pruitt’s confirmation hearing.

Bill Nye has also spoken out more about politics lately. He is best known for his public television kids science show, "Bill Nye the Science Guy."