President Joe Biden on Sunday visited the Amazon rainforest in Brazil, becoming the first sitting US president to do so. The region, roughly the size of Australia, plays a crucial role in storing carbon dioxide, a key factor in global warming.

A video of President Joe Biden appearing to "wander off" into the Amazon rainforest has gone viral on social media. The clip comes from the end of Biden's press conference Sunday from a section of forest in Manaus, Brazil, where he delivered remarks about conservation and the investments his administration has made in clean energy infrastructure.