Gabriela Sá Pessoa | Associated Press

Brazil is using forensic science to tackle illegal gold mining in the Amazon. The mining is a top threat to the rainforest and Indigenous and other local communities as it has accelerated deforestation and driven mercury contamination to dangerous levels. Federal police in Brasilia, the country's capital, are using "gold fingerprinting" — a highly specialized method that can precisely trace the origin of gold in samples.

Exploratory oil drilling off the coast of Brazil's Amazon rainforest are reshaping life in Oiapoque, a small city in the poor state of Amapa that is receiving thousand of migrants looking for work.

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

The blocking of social media platform X — formerly Twitter — in Brazil has divided users and politicians over the legitimacy of the ban, and many Brazilians had difficulty and doubts about navigating other social media in its absence. Brazil is one of the biggest markets for X.