Water has gained increased importance in communities’ and NGO’s agendas, becoming the most powerful convening issue for territorial based social movements resisting mining. Water is the most sensitive issue for communities as negative impacts on water directly affect food security and health. Water is also crucial for mining. It is required for workers and their families, for sanitation, for mineral processing, and is often a by-product of mining that needs to be treated before going back to the environment.
Actual and potential impacts of mining to important water sources are evident both in qualitative and quantitative terms. There are severe human health and ecosystem productivity impacts due to water pollution with heavy metals and suspended materials, and reduction in quantity of available water, resulting in competition and conflict with other water users. This situation is affecting a variety of ecosystems, including paramos (Andean moors), glaciers and glacier lakes, rivers and streams, natural lakes, oceans, and underground aquifers. Of special concern to rural peoples is the impact of mining activities on springs and streams that feed local aqueducts.
A few recent examples demonstrate the severity of the situation, caused by all types of mining, large, medium and small, as well as legal and illegal:
- The destruction of extensive areas of rainforest in the Amazon and Chocó basins and the silting-up of rivers, lakes and streams with suspended particles produced by mechanized alluvial gold mining;
- Mercury pollution of rivers and lakes by artisanal, small and medium gold mining;
- The rupture of large tailings dams, such as the 32.6 million m³ of tailings that came down from the Samarco dam polluting the Rio Doçe river all the way to the Atlantic ocean in Brazil in 2015[1], among many others[2];
- Cumulative water pollution with heavy metals and reduction of quantity due to mining in the headwaters of streams and rivers, for example in the Moquegua region of Peru[3];
- Continued acid mine drainage from abandoned and orphaned tailings and mines[4], and the lack of technologies and financial instruments to manage these impacts in perpetuity;
- The displacement of streams and rivers to gain access to mineral underlying them, a common practice of mining activity at all scales;
- The push to mine in the Arctic and along the backbone of the glaciers of the Andean Cordillera in South America;
- And, the pressure on underground aquifers.
Yorumlarınızı Bizimle Paylaşın
Sadece üyelerimiz yorum yapabilir, hemen ücretsiz üye olmak için Tıklayın