US mega drought makes boating rough on Lake Mead

In the 15 years since Adam Dailey began boating on Lake Mead, the shoreline has receded hundreds of meters, the result of more than two decades of punishing drought that is drying out the western United States.

How the world's rivers are changing

The way rivers function is significantly affected by how much sediment they transport and where it gets deposited. River sediment—mostly sand, silt, and clay—plays a critical ecological role, as it provides habitat for ...

Aging dams could soon benefit from $7B federal loan program

Eight years after Congress created the program, the U.S. Army Corps of Engineers is taking a first step toward offering more than $7 billion of federally backed loans to repair aging dams owned by states, local governments ...

Rare 'orchid of the falls' species declared extinct in the wild

A team of botanists from Guinea and the Royal Botanic Gardens, Kew in the UK have sounded the death knell for a plant in the Saxicolella genus that is endemic to a single location in Guinea. The sad discovery was made by ...

Researchers lay out a path to saving the Mekong Delta

Nearly 20 million people live in Southeast Asia's Mekong Delta, which is also the source of 7–10% of internationally traded rice. But the delta will be nearly entirely underwater by the end of the century if water management ...

Report says Michigan 2020 dam failures were 'preventable'

The failure of two Michigan dams that forced evacuation of 10,000 people and destroyed 150 homes was "foreseeable and preventable," resulting from errors and miscalculations over nearly a century, an expert panel said Wednesday.

Three Gorges Dam: Friend or foe of riverine greenhouse gases?

Dams are conventionally regarded as emitters of GHGs in large rivers. A team from Peking University of China, however, has disrupted this perception, based on whole system thinking applied to the Three Gorges Dam (TGD) on ...

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