Surfing in / Dam

Hydropower in Cambodia could threaten food security of region

Dam, Erosion, News
Jun
4

Farmers and anglers in Cambodia depend on the Mekong River’s predictable seasonal patterns, but new dams for hydroelectricity are altering the hydrology of the river. These changes have the potential to threaten fish migration, livelihoods, and regional food security.

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Sea-level rise and the precious commodity of sand

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The sand used to construct towns and cities leads to development that then impedes sand’s natural flow from watersheds, diminishing one of its best sources of replenishment.

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The Mekong, Dammed to Die

Dam, Erosion, News
Nov
15

In Laos, the lush forests are alive with the whines of drills that pierce the air. On the Mekong, a giant concrete wall rises slowly above the trees. The Don Sahong dam is a strong symbol, not only for a power-hungry Asia but also for what critics fear is a disaster in the making.

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How a useless dam nearly destroyed an iconic beach; CA

elwha-dam
Dam, Erosion
Aug
31

The city of Ventura and environmental groups launched a $4 million beach-building project when the coastline eroded in the early 1990s because the Ventura River was no longer bringing enough sand and sediment to nourish the beach. The sand thief was 16 miles upstream: Matilija Dam.

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Why the World’s Rivers Are Losing Sediment and Why It Matters

Dam, Erosion, News
Jun
23

Now, as global warming steadily melts glaciers and polar ice sheets, quickening the pace of sea level rise, scientists say that a severe shortage of river-borne sediment — most of it trapped behind dams — will increasingly be felt along the world’s coasts.

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The Vanishing Nile: A Great River Faces a Multitude of Threats

Dam, Erosion, Inform
Apr
22

The Nile River is under assault on two fronts – a massive dam under construction upstream in Ethiopia and rising sea levels leading to saltwater intrusion downstream.

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In Honduras, Defending Nature Is a Deadly Business

Dam, Erosion, Inform
Feb
28

Berta Cáceres fought to protect native lands in Honduras, and paid for it with her life. She is one of hundreds of victims of a disturbing global trend, the killings of environmental activists who try to block development projects. Most believe it was that campaign, against the Agua Zarca dam on the Gualcarque River, that provided the motive for her murder, one of a rash of recent killings of environmental and social activists.

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Mass evacuation below Oroville Dam as officials frantically try to make repairs before new storms

Dam, Erosion, News
Feb
13

More than 100,000 people were told to evacuate because of a “hazardous situation” involving the Northern California dam’s emergency spillway.

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“This is mother nature kind of kicking us”: Water released over spillway at Calif. dam

Dam, Erosion, News
Feb
12

Water started flowing over an emergency spillway at the nation’s tallest dam, on Lake Oroville, for the first time Saturday after erosion damaged the Northern California dam’s main spillway.

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