BRASILIA, Brazil — The Negro River, the Amazon’s second largest tributary, on Monday reached its lowest level since official measurements began near Manaus 121 years ago. The … ...

According to reports released in Brazil Tuesday, the Solimões River has dried up and has become a desert while the Negro River in Manaus has reached historic levels of drought and nearing figures ...

River levels in the Amazon are at record lows, upending lives, stranding boats and threatening endangered wildlfie, as Brazil endures its worst drought on record ...

Brazil is poised to invest tens of billions reais to build more than 2,000 km (1,240 miles) of new shipping channels in shrinking rivers – a dramatic, costly, damaging channelization of Amazon ...

which is called the Solimoes River in Brazil upstream from this confluence. In Brazilian maps, this marks the beginning of the Amazon, with Negro as the second main tributary. In international ...