IBOV 168,498.45 ▲ 1.39% IPC MEX 71,393.57 ▲ 0.43% MERVAL 2,848,945 — — USD/BRL5.50▼ 0.17% USD/MXN18.60▼ 0.84% USD/CLP 975.74 — 0.00% USD/COP3,240▲ 0.03% USD/PEN3.44▼ 0.15% USD/ARS 1,545 — 0.00% USD/UYU40.31▲ 3.48% USD/PYG6,358▲ 8.23% USD/BOB11.81▲ 0.40% USD/DOP60.56▲ 0.43% USD/CRC448.27▲ 1.89% USD/GTQ7.64▲ 3.24% USD/HNL26.88▲ 3.25% USD/NIO36.62▲ 2.69% USD/VES893.88▼ 0.13% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD157.99▲ 2.90% USD/TTD6.72▲ 2.39% EUR/BRL6.13▲ 0.07% BRENT 98.32 ▲ 0.03% WTI 90.83 ▲ 0.34% IRON ORE 161.91 — — COPPER 6.24 ▼ 0.18% GOLD 4,075 ▼ 0.94% SILVER 51.94 ▼ 0.56% SOY 1,194 ▲ 1.08% CORN 441.50 ▲ 0.34% WHEAT 591.25 ▼ 1.34% COFFEE 280.15 ▲ 1.08% SUGAR 18.25 ▼ 1.67% ORANGE JUICE 130.55 ▲ 1.63% COTTON 78.54 ▼ 0.22% COCOA 5,119 ▼ 1.20% BEEF 214.05 ▼ 0.16% CATTLE 318.38 ▼ 2.05% LITHIUM 60.91 ▲ 1.21% PETR4 45.36 ▼ 1.28% VALE3 64.04 ▲ 2.19% ITUB4 40.53 ▲ 1.40% BBDC4 14.20 ▲ 3.12% ABEV3 15.48 — 0.00% BBAS3 17.13 ▲ 3.88% B3SA3 14.39 ▲ 0.21% WEGE3 48.19 ▼ 0.23% PRIO3 60.48 ▼ 1.72% SUZB3 53.40 ▲ 2.12% RENT3 30.29 ▲ 4.20% AZZA3 14.76 ▲ 4.98% CSAN3 2.77 ▲ 10.80% RAIZ4 28.00 ▲ 2.56% PCAR3 2.40 ▲ 0.42% GMAT3 3.80 ▲ 2.43% PSSA3 44.35 ▲ 1.46% CVCB3 0.84 ▲ 2.44% POSI3 3.09 ▼ 0.64% SLCE3 16.61 ▲ 1.59% NATU3 5.17 ▼ 3.36% BRKM5 3.20 ▲ 5.61% RANI3 8.53 ▲ 0.83% CSNA3 4.41 ▲ 8.89% IBOV 168,498.45 ▲ 1.39% IPC MEX 71,393.57 ▲ 0.43% MERVAL 2,848,945 — — USD/BRL 5.50 ▼ 0.17% USD/MXN 18.60 ▼ 0.84% USD/CLP 975.74 — 0.00% USD/COP 3,240 ▲ 0.03% USD/PEN 3.44 ▼ 0.15% USD/ARS 1,545 — 0.00% USD/UYU 40.31 ▲ 3.48% USD/PYG 6,358 ▲ 8.23% USD/BOB 11.81 ▲ 0.40% USD/DOP 60.56 ▲ 0.43% USD/CRC 448.27 ▲ 1.89% USD/GTQ 7.64 ▲ 3.24% USD/HNL 26.88 ▲ 3.25% USD/NIO 36.62 ▲ 2.69% USD/VES 893.88 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.99 ▲ 2.90% USD/TTD 6.72 ▲ 2.39% EUR/BRL 6.13 ▲ 0.07% BRENT 98.32 ▲ 0.03% WTI 90.83 ▲ 0.34% IRON ORE 161.91 — — COPPER 6.24 ▼ 0.18% GOLD 4,075 ▼ 0.94% SILVER 51.94 ▼ 0.56% SOY 1,194 ▲ 1.08% CORN 441.50 ▲ 0.34% WHEAT 591.25 ▼ 1.34% COFFEE 280.15 ▲ 1.08% SUGAR 18.25 ▼ 1.67% ORANGE JUICE 130.55 ▲ 1.63% COTTON 78.54 ▼ 0.22% COCOA 5,119 ▼ 1.20% BEEF 214.05 ▼ 0.16% CATTLE 318.38 ▼ 2.05% LITHIUM 60.91 ▲ 1.21% PETR4 45.36 ▼ 1.28% VALE3 64.04 ▲ 2.19% ITUB4 40.53 ▲ 1.40% BBDC4 14.20 ▲ 3.12% ABEV3 15.48 — 0.00% BBAS3 17.13 ▲ 3.88% B3SA3 14.39 ▲ 0.21% WEGE3 48.19 ▼ 0.23% PRIO3 60.48 ▼ 1.72% SUZB3 53.40 ▲ 2.12% RENT3 30.29 ▲ 4.20% AZZA3 14.76 ▲ 4.98% CSAN3 2.77 ▲ 10.80% RAIZ4 28.00 ▲ 2.56% PCAR3 2.40 ▲ 0.42% GMAT3 3.80 ▲ 2.43% PSSA3 44.35 ▲ 1.46% CVCB3 0.84 ▲ 2.44% POSI3 3.09 ▼ 0.64% SLCE3 16.61 ▲ 1.59% NATU3 5.17 ▼ 3.36% BRKM5 3.20 ▲ 5.61% RANI3 8.53 ▲ 0.83% CSNA3 4.41 ▲ 8.89%
since 2009
Saturday, November 7, 2026

Opinion: Brazil’s Sea of Mud, a Smidgen

By · November 20, 2015 · 2 min read

Opinion, by Michael Royster

RIO DE JANEIRO, BRAZIL – This week, how not to write about the sea of mud? Not the figurative political mud that has taken over Brazilian communications for the past year, but the truly murderous mud that destroyed the district of Bento Rodrigues and took the lives of many of its residents. The sea of mud now threatens to concrete over the riverbed of the Rio Doce, an ecological disaster of multi-secular proportions.

The Curmudgeon, aka Michael Royster.
The Curmudgeon, aka Michael Royster.
RT
Ask Rio Times
17 years of Latin America reporting, on demand.
Open the full Ask Rio Times →

If the doom-saying experts are right, the destruction of the riverbed will lead, inexorably, to the destruction of traditional riverine flora and fauna habitats. Species will disappear, never to return. The course of the river will abruptly change, speeding into unknown territory at increased velocity because there is no more underlying soft bed nor verdant riverbanks to cushion its impact.

The Rio Doce now supplies drinking water for hundreds of thousands of people. As of this writing, people in cities and towns on the banks of the river refuse to drink the water because they fear the mud contains toxic matter. Governmental agencies deny this; would you believe them?

As of this writing, the mud bath has already traveled 400 kilometers downstream and has not appreciably slowed down; it threatens to reach the delta and the sea within another day or two. The buffer zone estuary between salt and fresh water will cease to exist.

How did this happen? Samarco, builder of the defective dams, claims there was an earthquake. President Dilma dithered six days before visiting the destruction, and then issued a decree calling the event a “natural disaster”. She knows that is not true, it is an unnatural, disaster made by men.

The LatAm Brief

One email, every weekday morning. What moved in Latin American markets, politics and expat life.

Yesterday’s subject line: “Paraguay's Senate ousts its president after a bank failure”

Free. We send a confirmation link first — nothing arrives until you click it. Unsubscribe with one click in any edition. If you stop opening us for 30 days we stop sending by ourselves, as we assume the interest is no longer there. See our privacy policy. We never share your email.

What has the federal government done other than pretend it was just an accident and lie about the toxicity of the water? It applied a fine of R$100 million to Samarco. Samarco’s owners (multinational mining giants Vale and BHP) are laughing all the way to the bank, as this is pocket change for them.

The Curmudgeon has written dismal smidgens before, but this one is truly saddening.

Editorial responsibility: Matthias Camenzind, Editor-in-Chief · Editorial standards · Report an error

The Rio Times · Power Map
See who really holds power in Latin America
Click to open the Power Map →

Brazil runoff date: Sunday, October 25, poll closing times and when results start · Brazil runoff polls: Flávio 51%, Lula 49% · Kalshi and Polymarket odds

Rotate for Best Experience

This report is optimized for landscape viewing. Rotate your phone for the full experience.