Hydroelectric dams threaten Brazils mysterious Pantanal one of the worlds great wetlands
Hydroelectric dams threaten Brazils mysterious Pantanal one of the worlds great wetlands
November 6, 2017 9.11am EST
The Pantanal in central South America may not be as globally famous as the Amazon rainforest, but it has the continents highest concentration of wildlife. Now, however, the regions endangered plants and animals, along with its still undiscovered secrets, may be wiped out in return for cheap hydroelectricity.
The Pantanal is the worlds largest tropical wetland and covers an area slightly larger than England. It lies mostly on a huge floodplain at the foot of Brazils southwestern highlands, but a fraction also spills over into Bolivia and Paraguay. In the wet season, from October to April, water washes down from those highlands bringing with it nutrients and fish and leaving most of the region underwater. When the rains finish, and the ground dries up, the landscape changes once again.
Seasonal variation on such a massive scale means the Pantanal contains a diverse range of plants and animals that have adapted to thrive in standing water or waterlogged soil. The region is home to more than 1,000 bird species and 300 mammals including the jaguar, capybara, giant otter and tapir.
Pantanal jaguars are the largest in the world. Hans Wagemaker / shutterstock
Yet the Pantanal is now threatened by Brazils thirst for hydroelectricity. We are part of a group of researchers investigating the state of Mato Grosso, where the rush to build dams is particularly apparent. Mato Grosso holds the upper reaches of the Pantanal, but is probably more famous for the Amazon rainforest in the north of the state and the enormous fazendas (large farms) on its fringes which produce soya, beef and cotton.
More:
https://theconversation.com/hydroelectric-dams-threaten-brazils-mysterious-pantanal-one-of-the-worlds-great-wetlands-86588
Environment and energy:
https://www.democraticunderground.com/1127113655
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