Gold prices are soaring. Cue the gold rush, and with it, more challenges for Brazil and efforts to protect the world's largest tropical forest, write Robert Muggah and Mac Margolis.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

It was just over a month ago that hundreds of extremist supporters of former President Jair Bolsonaro, stormed the capital and ransacked the Congress, Supreme Court and the presidential offices.

The illegal miners have polluted rivers and land in the reserve, leading to widespread hunger and disease.

Brazil is widening its investigations into how thousands of supporters of former president ransacked government buildings. But with Jair Bolsonaro still in Florida, Democratic lawmakers want him out.

Brazilian authorities arrested over 1,000 people following Sunday's assault on top government buildings by supporters of ex-President Jair Bolsonaro, who's taken temporary residence in the U.S.

Brazil's far-right ex-president was lying low in Orlando, Fla., as a mob of his supporters stormed government buildings this weekend. Analysts say the move insulates him from possible legal jeopardy.

Luiz Inácio Lula da Silva assumed office as Brazil's new leader Sunday, just three years after being released from prison on corruption charges and 12 years after his first two terms as president.

Brazilians who voted against President Jair Bolsonaro are torn about sporting the yellow soccer jersey after the far-right leader and his supporters adopted the shirt.

Almost two days after Sunday's vote, Brazilian President Jair Bolsonaro finally made his first statement about the election but did not concede that he lost to Luiz Inácio Lula da Silva.

President-elect Luiz Inácio Lula da Silva made a stunning political comeback by defeating incumbent Jair Bolsonaro. But he could face a short honeymoon — and a long four years in office.

Brazilians head to the polls Sunday to vote in a presidential election that is testing the world's fourth-largest democracy and could have a critical impact on the fight against climate change.

Luiz Inácio Lula da Silva, the left-wing former president, won more votes than right-wing incumbent President Jair Bolsonaro, but not enough to win outright in the 11-candidate race.

As one of the world's largest democracies heads to the polls on Sunday, here are the main candidates and issues in the Brazilian election.