IBOV 173,714.08 ▼ 0.06% IPSA 10,886.14 ▼ 0.56% IPC MEX 66,615.43 ▲ 0.39% MERVAL 3,199,934 ▲ 0.46% COLCAP 2,298.34 ▲ 0.58% BVL PERÚ 57,220.16 — — USD/BRL5.11▼ 0.03% USD/MXN17.52▼ 0.11% USD/CLP931.20▲ 0.67% USD/COP3,256▲ 0.14% USD/PEN3.39▼ 0.03% USD/ARS1,478▼ 0.03% USD/UYU40.23▲ 1.49% USD/PYG6,032▲ 1.38% USD/BOB10.65▲ 0.95% USD/DOP58.36▲ 0.10% USD/CRC446.12▲ 0.89% USD/GTQ7.62▲ 2.27% USD/HNL26.73▲ 0.32% USD/NIO 36.62 — 0.00% USD/VES735.09▼ 0.13% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD157.59▲ 0.36% USD/TTD6.74▲ 1.17% EUR/BRL5.84▼ 0.15% BRENT 90.27 ▲ 2.46% WTI 83.61 ▲ 1.36% IRON ORE 161.91 — — COPPER 6.28 ▲ 0.92% GOLD 4,006 ▼ 0.16% SILVER 56.89 ▲ 1.52% SOY 1,213 ▲ 0.66% CORN 472.00 ▲ 6.13% WHEAT 684.50 ▲ 0.26% COFFEE 304.70 ▼ 5.17% SUGAR 14.82 ▲ 2.63% ORANGE JUICE 139.35 ▲ 4.15% COTTON 78.93 ▲ 1.60% COCOA 5,753 ▲ 10.30% BEEF 220.70 ▼ 2.81% CATTLE 339.35 ▼ 2.09% LITHIUM 68.38 ▼ 0.70% PETR4 40.90 ▲ 2.53% VALE3 72.94 ▼ 0.05% ITUB4 41.96 ▼ 1.39% BBDC4 18.29 ▼ 0.65% ABEV3 15.63 ▲ 0.19% BBAS3 20.49 ▼ 1.30% B3SA3 15.20 ▼ 1.23% WEGE3 43.63 ▲ 0.32% PRIO3 57.85 ▲ 1.87% SUZB3 41.93 ▲ 0.55% RENT3 38.23 ▼ 1.62% AZZA3 18.59 ▲ 0.32% CSAN3 3.84 ▼ 1.03% RAIZ4 0.29 — 0.00% PCAR3 2.60 ▲ 0.39% GMAT3 3.88 ▼ 1.02% PSSA3 55.14 ▼ 0.14% CVCB3 1.22 ▼ 9.63% POSI3 3.80 ▼ 2.06% SLCE3 13.53 ▼ 0.59% NATU3 8.55 ▼ 0.12% BRKM5 6.19 ▲ 1.48% RANI3 7.95 ▼ 1.61% CSNA3 5.05 ▼ 0.98% CMIN3 5.33 ▼ 2.20% USIM5 8.23 ▲ 4.18% GGBR4 24.04 ▲ 0.54% ENEV3 25.68 ▼ 1.04% CPFE3 46.87 ▼ 0.68% CMIG4 11.12 ▲ 0.27% EQTL3 39.50 ▼ 0.88% LREN3 13.42 ▼ 1.69% VIVT3 35.52 ▲ 0.14% RAIL3 13.70 ▼ 1.65% KLABIN 17.58 ▲ 1.27% RAIA DROGASIL 18.55 ▲ 0.16% RDOR3 35.78 ▼ 0.25% HAPV3 11.38 ▲ 3.93% FLRY3 16.59 ▲ 1.04% SMTO3 15.45 ▼ 1.72% UGPA3 32.07 ▲ 0.25% VBBR3 34.92 ▲ 1.60% BBSE3 41.12 ▼ 0.15% BPAC11 56.18 ▼ 0.72% CURY3 30.67 ▼ 1.98% AERI3 2.02 — 0.00% VIVARA 22.44 ▼ 3.90% COMPASS 24.88 ▼ 0.12% VAMOS 3.17 ▲ 0.32% SANB11 26.65 ▼ 0.67% ASAI3 8.50 ▼ 0.70% SBSP3 29.22 ▼ 0.27% WALMEX 49.52 ▼ 0.08% GMEXICO 200.05 ▲ 0.41% FEMSA 225.68 ▲ 0.28% CEMEX 22.69 ▼ 0.40% GFNORTE 181.34 ▲ 0.53% BIMBO 58.00 ▲ 0.14% TELEVISA 9.57 ▲ 0.63% AMX 23.00 ▲ 0.97% GAP 386.00 ▼ 1.47% ASUR 279.71 ▼ 0.44% OMA 230.06 ▼ 1.30% KOF 181.10 ▲ 1.20% GRUMA 287.32 ▲ 0.34% KIMBER 38.67 ▼ 0.28% SQM-B 65,450 ▼ 0.91% COPEC 6,250 ▲ 2.02% BSANTANDER 77.00 ▼ 1.48% FALABELLA 5,835 ▼ 0.31% ENELAM 84.04 ▼ 0.90% CENCOSUD 1,995 ▼ 0.50% CMPC 1,070 ▼ 0.37% BANCO CHILE 188.50 ▼ 0.20% LATAM AIR 24.76 ▼ 2.52% YPF 77,900 ▲ 2.40% GGAL 7,860 ▼ 0.06% PAMPA 5,170 ▲ 1.17% TXAR 665.00 ▲ 0.45% ALUAR 949.50 ▲ 1.01% TGS 9,370 ▼ 0.16% CEPU 2,264 ▲ 0.18% MIRGOR 16,875 ▲ 0.75% COME 43.84 ▼ 1.39% LOMA NEGRA 3,535 ▼ 0.63% BYMA 299.00 ▼ 0.83% TELECOM ARG 4,150 ▼ 0.72% ECOPETROL 16.09 ▲ 1.84% BANCOLOMBIA 80.41 ▲ 1.18% GRUPO AVAL 4.92 ▼ 1.01% CREDICORP 390.70 ▲ 0.84% SOUTHERN COPPER 172.48 ▼ 1.81% BUENAVENTURA 30.24 ▲ 0.23% MERCADOLIBRE 1,814 ▼ 2.34% NUBANK 13.59 ▼ 1.45% XP 16.67 ▼ 0.06% PAGSEGURO 9.04 ▼ 1.20% STONE 11.15 ▼ 0.45% GLOBANT 32.23 ▲ 0.09% TECNOGLASS 46.48 ▼ 0.75% GAP AIRPORT 220.91 ▼ 1.94% ASUR 279.71 ▼ 0.44% OMA AIRPORT 105.31 ▼ 1.77% AMX ADR 26.27 ▲ 0.50% FEMSA ADR 129.02 ▼ 0.36% CEMEX ADR 12.98 ▼ 0.92% PETROBRAS ADR 17.97 ▲ 2.86% VALE ADR 14.19 ▼ 0.21% ITAU ADR 8.21 ▼ 1.14% SANTANDER BR 5.24 ▼ 1.04% AMBEV ADR 3.03 ▼ 0.66% CSN 0.99 ▼ 0.89% GERDAU 4.73 ▲ 0.11% LATAM ADR 52.56 ▼ 1.17% BTC 64,863 ▲ 0.10% ETH 1,878 ▲ 0.91% SOL 76.89 ▲ 1.89% XRP 1.10 ▲ 0.84% BNB 570.80 ▲ 0.09% ADA 0.17 ▼ 0.19% DOGE 0.07 ▲ 0.25% AVAX 6.58 ▲ 0.13% LINK 8.46 ▲ 1.43% DOT 0.81 ▼ 2.75% LTC 47.29 ▲ 0.61% BCH 213.53 ▼ 2.99% TRX 0.33 ▲ 0.30% XLM 0.19 ▲ 0.20% HBAR 0.07 ▼ 1.41% NEAR 1.92 ▼ 0.75% ATOM 1.46 ▼ 2.37% AAVE 89.31 ▼ 0.65% SELIC 14.25% EMBRAER 81.75 ▼ 0.02% EMBRAER ADR 64.09 ▼ 0.44% JBS 11.91 ▼ 1.00% JBS BDR 60.20 ▼ 2.11% MBRF3 15.03 ▼ 1.70% MBRFY 2.90 ▼ 1.02% INTER 5.37 ▼ 3.07% IBOV 173,714.08 ▼ 0.06% IPSA 10,886.14 ▼ 0.56% IPC MEX 66,615.43 ▲ 0.39% MERVAL 3,199,934 ▲ 0.46% COLCAP 2,298.34 ▲ 0.58% BVL PERÚ 57,220.16 — — USD/BRL 5.11 ▼ 0.03% USD/MXN 17.52 ▼ 0.11% USD/CLP 931.20 ▲ 0.67% USD/COP 3,256 ▲ 0.14% USD/PEN 3.39 ▼ 0.03% USD/ARS 1,478 ▼ 0.03% USD/UYU 40.23 ▲ 1.49% USD/PYG 6,032 ▲ 1.38% USD/BOB 10.65 ▲ 0.95% USD/DOP 58.36 ▲ 0.10% USD/CRC 446.12 ▲ 0.89% USD/GTQ 7.62 ▲ 2.27% USD/HNL 26.73 ▲ 0.32% USD/NIO 36.62 — 0.00% USD/VES 735.09 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.59 ▲ 0.36% USD/TTD 6.74 ▲ 1.17% EUR/BRL 5.84 ▼ 0.15% BRENT 90.27 ▲ 2.46% WTI 83.61 ▲ 1.36% IRON ORE 161.91 — — COPPER 6.28 ▲ 0.92% GOLD 4,006 ▼ 0.16% SILVER 56.89 ▲ 1.52% SOY 1,213 ▲ 0.66% CORN 472.00 ▲ 6.13% WHEAT 684.50 ▲ 0.26% COFFEE 304.70 ▼ 5.17% SUGAR 14.82 ▲ 2.63% ORANGE JUICE 139.35 ▲ 4.15% COTTON 78.93 ▲ 1.60% COCOA 5,753 ▲ 10.30% BEEF 220.70 ▼ 2.81% CATTLE 339.35 ▼ 2.09% LITHIUM 68.38 ▼ 0.70% PETR4 40.90 ▲ 2.53% VALE3 72.94 ▼ 0.05% ITUB4 41.96 ▼ 1.39% BBDC4 18.29 ▼ 0.65% ABEV3 15.63 ▲ 0.19% BBAS3 20.49 ▼ 1.30% B3SA3 15.20 ▼ 1.23% WEGE3 43.63 ▲ 0.32% PRIO3 57.85 ▲ 1.87% SUZB3 41.93 ▲ 0.55% RENT3 38.23 ▼ 1.62% AZZA3 18.59 ▲ 0.32% CSAN3 3.84 ▼ 1.03% RAIZ4 0.29 — 0.00% PCAR3 2.60 ▲ 0.39% GMAT3 3.88 ▼ 1.02% PSSA3 55.14 ▼ 0.14% CVCB3 1.22 ▼ 9.63% POSI3 3.80 ▼ 2.06% SLCE3 13.53 ▼ 0.59% NATU3 8.55 ▼ 0.12% BRKM5 6.19 ▲ 1.48% RANI3 7.95 ▼ 1.61% CSNA3 5.05 ▼ 0.98% CMIN3 5.33 ▼ 2.20% USIM5 8.23 ▲ 4.18% GGBR4 24.04 ▲ 0.54% ENEV3 25.68 ▼ 1.04% CPFE3 46.87 ▼ 0.68% CMIG4 11.12 ▲ 0.27% EQTL3 39.50 ▼ 0.88% LREN3 13.42 ▼ 1.69% VIVT3 35.52 ▲ 0.14% RAIL3 13.70 ▼ 1.65% KLABIN 17.58 ▲ 1.27% RAIA DROGASIL 18.55 ▲ 0.16% RDOR3 35.78 ▼ 0.25% HAPV3 11.38 ▲ 3.93% FLRY3 16.59 ▲ 1.04% SMTO3 15.45 ▼ 1.72% UGPA3 32.07 ▲ 0.25% VBBR3 34.92 ▲ 1.60% BBSE3 41.12 ▼ 0.15% BPAC11 56.18 ▼ 0.72% CURY3 30.67 ▼ 1.98% AERI3 2.02 — 0.00% VIVARA 22.44 ▼ 3.90% COMPASS 24.88 ▼ 0.12% VAMOS 3.17 ▲ 0.32% SANB11 26.65 ▼ 0.67% ASAI3 8.50 ▼ 0.70% SBSP3 29.22 ▼ 0.27% WALMEX 49.52 ▼ 0.08% GMEXICO 200.05 ▲ 0.41% FEMSA 225.68 ▲ 0.28% CEMEX 22.69 ▼ 0.40% GFNORTE 181.34 ▲ 0.53% BIMBO 58.00 ▲ 0.14% TELEVISA 9.57 ▲ 0.63% AMX 23.00 ▲ 0.97% GAP 386.00 ▼ 1.47% ASUR 279.71 ▼ 0.44% OMA 230.06 ▼ 1.30% KOF 181.10 ▲ 1.20% GRUMA 287.32 ▲ 0.34% KIMBER 38.67 ▼ 0.28% SQM-B 65,450 ▼ 0.91% COPEC 6,250 ▲ 2.02% BSANTANDER 77.00 ▼ 1.48% FALABELLA 5,835 ▼ 0.31% ENELAM 84.04 ▼ 0.90% CENCOSUD 1,995 ▼ 0.50% CMPC 1,070 ▼ 0.37% BANCO CHILE 188.50 ▼ 0.20% LATAM AIR 24.76 ▼ 2.52% YPF 77,900 ▲ 2.40% GGAL 7,860 ▼ 0.06% PAMPA 5,170 ▲ 1.17% TXAR 665.00 ▲ 0.45% ALUAR 949.50 ▲ 1.01% TGS 9,370 ▼ 0.16% CEPU 2,264 ▲ 0.18% MIRGOR 16,875 ▲ 0.75% COME 43.84 ▼ 1.39% LOMA NEGRA 3,535 ▼ 0.63% BYMA 299.00 ▼ 0.83% TELECOM ARG 4,150 ▼ 0.72% ECOPETROL 16.09 ▲ 1.84% BANCOLOMBIA 80.41 ▲ 1.18% GRUPO AVAL 4.92 ▼ 1.01% CREDICORP 390.70 ▲ 0.84% SOUTHERN COPPER 172.48 ▼ 1.81% BUENAVENTURA 30.24 ▲ 0.23% MERCADOLIBRE 1,814 ▼ 2.34% NUBANK 13.59 ▼ 1.45% XP 16.67 ▼ 0.06% PAGSEGURO 9.04 ▼ 1.20% STONE 11.15 ▼ 0.45% GLOBANT 32.23 ▲ 0.09% TECNOGLASS 46.48 ▼ 0.75% GAP AIRPORT 220.91 ▼ 1.94% ASUR 279.71 ▼ 0.44% OMA AIRPORT 105.31 ▼ 1.77% AMX ADR 26.27 ▲ 0.50% FEMSA ADR 129.02 ▼ 0.36% CEMEX ADR 12.98 ▼ 0.92% PETROBRAS ADR 17.97 ▲ 2.86% VALE ADR 14.19 ▼ 0.21% ITAU ADR 8.21 ▼ 1.14% SANTANDER BR 5.24 ▼ 1.04% AMBEV ADR 3.03 ▼ 0.66% CSN 0.99 ▼ 0.89% GERDAU 4.73 ▲ 0.11% LATAM ADR 52.56 ▼ 1.17% BTC 64,863 ▲ 0.10% ETH 1,878 ▲ 0.91% SOL 76.89 ▲ 1.89% XRP 1.10 ▲ 0.84% BNB 570.80 ▲ 0.09% ADA 0.17 ▼ 0.19% DOGE 0.07 ▲ 0.25% AVAX 6.58 ▲ 0.13% LINK 8.46 ▲ 1.43% DOT 0.81 ▼ 2.75% LTC 47.29 ▲ 0.61% BCH 213.53 ▼ 2.99% TRX 0.33 ▲ 0.30% XLM 0.19 ▲ 0.20% HBAR 0.07 ▼ 1.41% NEAR 1.92 ▼ 0.75% ATOM 1.46 ▼ 2.37% AAVE 89.31 ▼ 0.65% SELIC 14.25% EMBRAER 81.75 ▼ 0.02% EMBRAER ADR 64.09 ▼ 0.44% JBS 11.91 ▼ 1.00% JBS BDR 60.20 ▼ 2.11% MBRF3 15.03 ▼ 1.70% MBRFY 2.90 ▼ 1.02% INTER 5.37 ▼ 3.07%
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Monday, July 20, 2026

Opinion: Brazil’s Sea of Mud, a Smidgen

By · November 20, 2015 · 2 min read

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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.
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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.

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.

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