The president toured the rainforest and promised Brazil funds for environmental initiatives, even as the incoming Trump administration appears poised to roll them back.

Biden’s emphasis on climate change during his trip creates yet another contrast with Trump as the president prepares to leave office.

President Joe Biden made a historic visit to the Amazon on Sunday and made a call for future generations to protect the wildlife in the region.

Without mentioning President-elect Donald Trump's name, Chinese President Xi Jinping appeared to signal his concern that Trump's protectionist rhetoric on the campaign trail could send the U.S.-China relationship into another valley.

China's President Xi Jinping told his U.S. counterpart Joe Biden that the issues of Taiwan, democracy, human rights and rights to development are "red lines" for China and not to be challenged, the official state media Xinhua said on Sunday.

Chinese leader Xi Jinping on Saturday told President Biden that Beijing remains committed to stable relations with the U.S., an expression of hope for continuity in ties before Donald Trump returns to the Oval Office in the midst of promises to squeeze Beijing over trade.