World leaders are gathering in a coastal city in the Brazilian Amazon for the U.N.'s annual climate summit.

U.S. Secretary of State Marco Rubio has invited Brazilian Foreign Minister Mauro Vieira to an in-person meeting.

Brazil has launched what it calls a social summit ahead of next week’s Group of 20 meeting of the top economies.

The most notable thing about the annual Mercosur summit kicking off in Paraguay is an absence — that of Argentine President Javier Milei.

Brazil’s foreign minister is calling for reforms of the United Nations and other multilateral institutions, as his country kicked off its presidency of the Group of 20 nations.