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Federal report boosts plan to remove 4 dams on Calif river

9/1/2022

 
Federal regulators on Friday issued a final environmental impact statement that supports the demolition of four massive dams on Northern California’s Klamath River to save imperiled migratory salmon. The staff's recommendation, which largely echoes an earlier draft opinion, tees up a vote on the roughly $500 million project by the five-member Federal Energy Regulatory Commission later this year. The removal of the four hydroelectric dams on the lower Klamath River — one in southern Oregon and three in California — would be the largest dam demolition project in U.S. history. The aging dams near the Oregon-California border were built before current environmental regulations and essentially cut the 253-mile-long (407-kilometer-long) river in half for migrating salmon. Migratory salmon have been hit hard by warming waters and low river flows caused by severe drought and competition for water with agricultural interests. - ABC News

In Peru, fishermen struggle to stay afloat after oil spill

3/14/2022

 
After a large crude-oil spill by the Spanish-owned Repsol oil refinery caused suspension of fishing in Peru, more than 2,500 fishermen have been out of work. Those affected are on the poverty line and it remains unclear when they can return to fish.  - CSMonitor

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Shell offered South African villagers jobs. They chose their heritage instead.

2/4/2022

 
Mashona Dlamini knew his land was rich long before any mining company told him so.  As a child, he often followed his father, a healer called an inyanga, down through the silver-flecked red dunes around their village to the coast. There, they gathered the octopuses, sea urchins, and seawater that his father used to make medicine. In winter, the land on either side of their path heaved up sweet potatoes and corn, in summer thick bunches of bananas. As long as they took only what they needed, Mr. Dlamini’s father explained as they walked, there would always be more. So when international mining companies began to arrive in the early 2000s – first for titanium in the dunes, and later for gas they said might be beneath the ocean floor – Mr. Dlamini, along with many of his neighbors, wasn’t particularly interested in their pitch.  - CS Monitor
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The Battle to Save Waikiki Beach

1/30/2022

 
Waikiki might be one of the most famous beaches in the world, a synonym for surfing and sun-soaked vacations that draw millions of people annually. But for years, Honolulu and the State of Hawaii have been reckoning with a very uncomfortable fact: The beach is vanishing. Just below the infinity pool at the Sheraton Waikiki, an advancing shoreline claimed a walkway and set of concrete stairs, which now dangle above the water. At the Outrigger Reef hotel, ocean water laps directly against the wall of the new Monkeypod Kitchen restaurant, still under renovation. - Politico
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Geomorphology & Veg Change at CO River Campsites, Marble and Grand Canyons

1/13/2022

 
Sandbars along the Colorado River are used as campsites by river runners and hikers and are an important recreational resource within Grand Canyon National Park, Arizona. Regulation of the flow of river water through Glen Canyon Dam has reduced the amount of sediment available to be deposited as sandbars, has reduced the magnitude and frequency of flooding events, and has increased the magnitude of baseflows. This has caused widespread erosion of sandbars and has allowed native and non-native vegetation to expand on open sand. Previous studies show an overall decline in campsite area despite the use of controlled floods to rebuild sandbars. Monitoring of campsites since 1998 has shown changes in campsite area, but the factors that cause gains and losses in campsite area have not been quantified. These factors include changes in sandbar volume and slope under different dam flow regimes that include controlled floods, gul- lying caused by monsoonal rains, vegetation expansion, and reworking of sediment by aeolian processes. - USGS
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Coastal Erosion in San Clemente Threatens Railroad Tracks, Pricey Homes

10/4/2021

 
Each day after the tide went out, workers piled enormous rocks onto the sandy beach.  They were rushing to dump at least 11,000 tons to keep the ocean at bay and reopen a picturesque stretch of railroad track in San Clemente.  In the nearby Cyprus Shores gated community, cracks recently began surfacing in the clubhouse and several multimillion-dollar homes. The tracks were shut down last month after large waves swept in and the ground became unstable.  The forces at work along this beach and the rest of the California coast cannot, in the long run, be stopped by a stack of boulders. Climate change has led to rising sea levels, which translates to more intense battering of beachside communities. - LA Times
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After Hurricane Ida, Oil Infrastructure Springs Dozens of Leaks

9/27/2021

 
When Hurricane Ida barreled into the Louisiana coast with near 150 mile-per-hour winds on Aug. 30, it left a trail of destruction. The storm also triggered the most oil spills detected from space after a weather event in the Gulf of Mexico since the federal government started using satellites to track spills and leaks a decade ago.  In the two weeks after Ida, the National Oceanic and Atmospheric Administration issued a total of 55 spill reports, including a spill near a fragile nature reserve. It underscores the frailty of the region’s offshore oil and gas infrastructure to intensifying storms fueled by climate change. - NY Times

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Russian Investigators Probe Big Black Sea Oil Spill

8/17/2021

 
Russia's top criminal investigation agency on Thursday probed an oil spill off the country's Black Sea coast that appeared hugely bigger than initially reported.  The spill occurred over the weekend at the oil terminal in Yuzhnaya Ozereyevka near the port of Novorossiysk that belongs to the Caspian Pipeline Consortium, which pumps crude from Kazakhstan. The oil spilled while being pumped into the Minerva Symphony tanker, which sails under the Greek flag. - Phys.Org
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Oceanside Searches for Ways to Keep Sand on Its Eroding Beaches

7/25/2021

 
Oceanside’s annual harbor dredging and the occasional regional sand replenishment projects are not enough to save the city’s eroding beaches, a new study shows.  A proposal to build rock groins on the beach appears to be the best way to stop or at least slow the steady erosion that has been chewing away the city’s coastline since the 1940s, according to the study prepared for Oceanside by the Long Beach-based consulting firm GHD.  “Sand from this (harbor dredging) program does little to really benefit the city beaches,”  -San Diego Union
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The Science of Predicting When Bluffs in Southern California Will Collapse

7/14/2021

 
In August 2019, three women were strolling along the beach of Encinitas, California, north of San Diego, when the oceanfront bluff unexpectedly crumbled, showering them with tonnes of sandstone. One of the women, who had been celebrating her recovery from breast cancer, was killed instantly, while her sister and niece later died in the hospital.  That tragic event was neither the first nor the last bluff collapse in a scenic and densely populated, yet precarious, coastal region. Just a few kilometers to the south in Del Mar, a bluff collapsed following a rainstorm in 2016, undermining a busy coastal roadway. Sections of beachside cliffs came crashing down in the area in 2018, too, though no injuries were reported. In February this year, another bluff collapsed—along with the aging sea wall intended to hold it back—about 10 meters from the rail line that links San Diego and Los Angeles and serves nearly eight million passengers and numerous freight trains annually. - Smithsonian


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Miami Condo Collapse Highlights Urgent Need to Adapt to Rising Seas

7/6/2021

 
The collapse of the condominium building in Surfside, Florida, may force what some say is a long overdue conversation about the hard realities of climate change that will transform one of the nation’s most vulnerable regions.  To be sure, no evidence has emerged so far to connect climate change to the middle-of-the-night collapse of the Champlain Towers on June 24, which buried residents in the rubble. Sea level has risen eight inches in South Florida since 1981, when the 12-story condo was built—not enough to be responsible for its collapse, says Hal Wanless, a University of Miami geologist and South Florida’s preeminent voice on sea-level rise.  The investigation so far is more focused on a confluence of events including delays by the homeowners association in carrying out recommended repairs and an environmental danger that’s been known for more than a century: the corrosive effects of salt water on coastal construction. - National Geographic
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Study Links Fossil Fuels To A Million Deaths In 2017

6/25/2021

 
In 2017 around 1.05 million deaths were avoidable by eliminating fossil fuel combustion, according to a study published in the science journal Nature Communications. The largest number of these deaths occurred in world’s two most populous countries - China and India. Air pollution caused due to combustion of coal alone contributed to half of these deaths. Residential, industry and energy sectors were other dominant global sources of fossil fuel emissions. The study indicates that replacing traditional energy sources will have substantial health benefits. - Forbes / Nature
Right: Oil covers the sand at low tide near Refugio State Beach, Goleta, CA, May 20.
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A 20-Foot Sea Wall? Miami Faces the Hard Choices of Climate Change.

6/2/2021

 
While some "news" channels and Facebook "experts" dispute the reality of human made climate change, those changes already are affecting Miami.  - NYTimes


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Mangroves Regrow in Iloilo City

5/25/2021

 
It is good to know that we can worth with nature. 

​Like many port cities in the Philippines, Iloilo City is susceptible to intense flooding and massive landslides each year. In 2011, the government completed the construction of an artificial waterway—the Jaro Floodway—to help divert floodwaters away from the city and mitigate the deadly events. But the new channel also brought an unexpected surprise: a resurgence of mangrove trees. - NASA Earth Observatory
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How Bad Is Plastic Pollution?  Scientists Reveal a Staggering Global Estimate

10/11/2020

 
How bad is the problem? Our new research provides the first global estimate of microplastics on the seafloor - our research suggests there’s a staggering 8-14 million tonnes of it. This is up to 35 times more than the estimated weight of plastic pollution on the ocean’s surface. - Inverse from Frontiers in Marine Science

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40% of O'ahu, Hawai'i Beaches Could be Lost by Mid-Century

9/25/2020

 
If policies are not changed, as much as 40% of all beaches on O'ahu, Hawai'i could be lost before mid-century, according to a new study by researchers in the Coastal Geology Group at the University of Hawai'i (UH) at Manoa.  In an era of rising sea level, beaches need to migrate landward, otherwise they drown. Beach migration, also known as shoreline retreat, causes coastal erosion of private and public beachfront property. Shoreline hardening, the construction of seawalls or revetments, interrupts natural beach migration -- causing waves to erode the sand, accelerating coastal erosion on neighboring properties, and dooming a beach to drown in place as the ocean continues to rise. - Science Weekly

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    GeoNews

    This is a way to share science-based info from reliable sources. Click the source link after text to read more. Use this Google Doc or this Google Slides template to summarize an article. An occasional podcast featuring news and topic experts will be included.
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