Biden becomes the first sitting US president to visit the Amazon rainforest [SOUND]

# Joe Biden has become the first sitting US president to visit the Amazon, the world’s largest tropical rainforest. Yesterday, he engaged with local and Indigenous leaders working to conserve and protect this critical ecosystem. The Amazon region stores massive amounts of the world’s carbon dioxide, a greenhouse gas driving climate change. Biden has signed a proclamation designating November 17 as International Conservation Day. He described the battle against climate change as a defining cause of his presidency: