President Joe Biden has made a historic trip to the Amazon rainforest, becoming the first sitting U.S. president to do so. During his visit, he declared that nobody can reverse the progress made in clean energy and emphasized that climate change poses an existential threat to all nations. In light of the incoming Trump administration, which he warned could threaten climate progress, Biden pledged to leave a strong climate foundation for future leaders to build upon. As he toured the rainforest, he called for collective action to protect the environment and wildlife, marking the day as International Conservation Day.