Scientists say the rain forest is approaching a critical tipping point at which the damage is irreversible.

Corruption investigations that started in Brazil ultimately triggered political upheaval across the continent. But the Brazilian taskforce’s methods have been questioned, including over alleged bias…

With the United States hosting the regional meeting for the first time since 1994, all eyes are on how President Biden will navigate growing divisions over democracy, migration, and other issues.

Fires in the Amazon have aroused international concern because of the rain forest’s outsize impact on climate, but political tensions are hampering the response.