This situation is being tragically underreported everywhere, and this doesnât really cover the sheer proportion of this as an environmental disaster. What happened in Brazil is comparable to the Fukushima tsunami or the BP oil spill in environmental damage.
The Rio Doce, one of the most important waterbeds in Brazil, is dead. Even with the mud being flushed out, the river is pretty much impossible to recover. This is not just mud weâre talking about, itâs mining rejects, industrial sludge contaminated with heavy metals thatâs the subproduct of the iron mining in the region. This sludge will destroy everything on itâs path and finally end in the South Atlantic, and itâs expected to spread up to 300 kilometers in every direction once it hits the ocean water. This will impact the whole South Atlantic food chain. On itâs way down, the sludge will cause the extinction of a large number of plant and animal species that are endemic to the Rio Doce area.
As of this moment, search for bodies and survivors on the cities afected by the dam breach was stopped because the SĂŁo Germano dam is cracked and at risk. The area is beind evacuated. If this dam cracks, the mudslide can reach speeds of up to 30 mph. There are already reports of people who had to leave their houses in a rush and try to outrun the mudslide. You canât outrun a 30 mph one. Combine this with the fact that the rain season is starting in Brazil right now, and the water volume of the river will increase, speeding out the flush even more.
In the meanwhile, cities who are in the path of the sludge but have not been affected yet have their water supply cut off, since the Rio Doce is contaminated. An estimated 800 thousand people in the area have no reliable water supply right now. The company responsible for the disaster, Vale, has sent a train with a water load, but this load was contaminated with kerosene due to improper cleaning of the tanks, which were previously used to transport fuel. This water cannot be used, and the population doesnât know when the next load is coming. 19 towns have been affected up to now.
It should also be noted that a lot of the towns drowned by the mudslide were historical towns, not only important sites for tourism but also having great archeological value. This is all gone now.
In short, thousands of people have lost everything they ever had, a major river is now dead and the South Atlantic ecossystem is irreparably compromised. This is a huge deal, and I can find very few links in English about this issue. Itâs being mostly swept under the rug. I have family living in Minas Gerais and weâre just waiting to see whatâs gonna happen to them, and to the whole population of the state. Weâre expecting a mass exodus, specially if more dams break.
A video of the dam breach, as well of other impact sites, can be seen here.
News links about the subject (in Portuguese):Â
http://noticias.uol.com.br/cotidiano/ultimas-noticias/2015/11/13/bombeiros-detectam-falha-em-barragem-que-nao-rompeu-em-mariana.htm
http://noticias.uol.com.br/cotidiano/ultimas-noticias/2015/11/06/o-que-se-sabe-sobre-o-rompimento-das-barragens-em-mariana-mg.htm
http://g1.globo.com/ciencia-e-saude/noticia/2015/11/rompimento-de-barragens-em-mariana-perguntas-e-respostas.html
http://www.em.com.br/app/noticia/gerais/2015/11/13/interna_gerais,707556/prefeito-de-mariana-confirma-fissura-em-barragem-da-samarco.shtml