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Illegal gold mining happening in plain sight on an Amazon river

A horrifying view of 300 illegal rafts mining the Madeira River.

by Paula Ferreira
December 2, 2021
in Environment, Environmental Issues, Pollution, World Problems
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Illegal mining in the Amazon is a growing threat to local communities, but it’s continuing to grow and expand, posing a threat not just to the environment but to people’s health as well. A few days ago, a rumour that gold was found in the Madeira river in the south of the Amazon rainforest sent would-be miners into a frenzy, with hundreds of rafts being spotted on the lake.

After a rather slow crackdown, the operations have now been stopped, but many fear miners are still active, but are now more careful about hiding.

Map of the Amazon Basin with the Madeira River highlighted.

The Madeira River is the biggest tributary of the Amazon river, the biggest in the world. Madeira alone contains40% of the fish species of all the Amazon basin, including several endemic species such as the Bolivian river dolphin. It’s 3,250 km (2,020 mi), during the rainy season its depth can reach 180 m (590 ft).

Fifteen days ago, around 300 hundred dredging rafts moved to the river due to the gold rumor. The activity is obviously illegal in such an important region of the Amazon basin — but that did little to stop miners.

Hundreds of illegal miners are dredging for gold along the Madeira River in Brazil’s Amazon rainforest, as state and federal authorities dispute who is responsible for stopping them https://t.co/gLpMviEbsc pic.twitter.com/UmPqpKY77e

— Reuters (@Reuters) November 25, 2021

Hundreds of barges of illegal gold miners are navigating along the Madeira River in the Brazilian Amazon, and researchers say they pose an environmental threat. The toxic mercury miners use to separate gold from sediment ends up in the river. https://t.co/DvmFKCoyiF

— The Associated Press (@AP) November 27, 2021

The rafts appeared together in lines and placed themselves in plain sight as if nothing out of normal was happening. The rafts are equipped with pumps to suck the riverbed to find gold. Then, to make things worse, miners use toxic substances made of mercury to separate the gold from sand and other rocky material. The remains of the separation are then discarded in the river itself.

ALSO READ:  Almost everyone in the world is now breathing polluted air that exceeds safe levels

This situation is an environmental disaster waiting to happen, but the Brazilian government only started preparing on November 25, well after the presence of the rafts was clear. As the government made it a public statement it made most of the miners leave the area, until finally on November 27 the remaining rafts were burned down by the Federal Police.

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A post shared by Greenpeace Brasil (@greenpeacebrasil)

Not so long ago, in 2018, scientists were ‘celebrating’ the decline of mining in the river. They published a paper discussing mercury pollution and attributed the concentration levels to be mostly from the ’80s when the activity was intense in the region.

Unfortunately, it is nearly impossible for the consumer to know where the materials used to make jewels come from. If it is connected to illegal mining it comes with human rights risks and environmental impacts. Some of the ecological impacts stated by scientists include the loss of land and natural vegetation, air pollution from the vehicles used, and noise pollution.

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