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Removing one gigantic dam can have a massive effect on restoring a river ecosystem.
Australia's Iconic Platypus Faces Extinction Threat Due to Climate Change and Human Activity
The devastating wildfires in Australia that have claimed the lives of more than a billion animals, by some estimates, are just one of the effects of global climate change the country's wildlife is grappling with. Australia is also currently in the grips of an extreme drought, and the nationwide average daily temperature recently hit nearly 106 degrees Fahrenheit, shattering the previous record.
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Scientists have concluded of the largest freshwater fish species in the world is now extinct because of human activity.
By Jodi Helmer
Each year, millions of tons of grain make their way along what was once one of our wildest river systems, the Columbia-Snake River. Four dams — the Lower Granite, Little Goose, Lower Monumental and Ice Harbor — erected between 1955 and 1975, ease the way for massive barges bound for ports on the West Coast, and ultimately, markets in Asia. Soybeans, wood products, mineral bulks, and automobiles also travel the river by barge. But outnumbering all other cargo is the soft white wheat grown by farmers from 11 states.
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A proposal to dam four parts of a Colorado River tributary for hydropower has drawn significant opposition from Native American tribes, environmentalists and regulatory agencies, according to the AP.
At least 1,688 dams across the U.S. are in such a hazardous condition that, if they fail, could force life-threatening floods on nearby homes, businesses, infrastructure or entire communities, according to an in-depth analysis of public records conducted by the the Associated Press.
By Paula Ezcurra and Octavio Aburto
Thousands of hydroelectric dams are under construction around the world, mainly in developing countries. These enormous structures are one of the world's largest sources of renewable energy, but they also cause environmental problems.
Only a little more than one-third of the world's 246 longest rivers remain free-flowing, drastically reducing the diverse benefits that healthy rivers provide to people and nature everywhere, according to a new study by World Wildlife Fund (WWF) and partners.
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By the Numbers
5: Priority recommendations that the U.S. Environmental Protection Agency (EPA) has implemented since March 2018. Those actions relate to chemical standards, nonpoint water pollution and water pollution assessment. There are, however, 14 priority recommendations that the agency has not acted on. (Government Accountability Office)
By Sue Branford and Thais Borges
Violence in the Brazilian countryside is on the rise. In the last two weeks, Amazonia has seen an alarming increase in targeted killings, with three massacres and at least nine deaths. The Catholic Church's Pastoral Land Commission (CPT) defines a massacre as a killing involving three or more people.
By Tara Lohan
More than 1,000 people lined the banks of the Kennebec River in Augusta, Maine, on July 1, 1999. They were there to witness a rebirth.