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In a 1982 US reservoir review, fish and plankton productivity rose after valleys were flooded, then declined as spawning habitat and detritus became less availableFollowing the creation of American reservoirs, there’s an initial surge in fish populations, creating a thriving aquatic ecosystem. However...- Four dams built on the Klamath River between 1918 and 1966 made power, not water storage; in 2024, the last came down, reopening 420 miles of salmon habitatIn a groundbreaking initiative, four dams on the Klamath River spanning California and Oregon have been dismantled after a century of exist...
- Physicswallah shares jump 5% after block deal worth Rs 550 crore. What’s ahead after 63% rally in 6 months?PhysicsWallah shares surged around 5% after nearly 4.67 crore shares worth about Rs 550 crore changed hands in a block deal at Rs 117.72 ap...
- In 1923, a geologist said a sudden, catastrophic Ice Age flood carved Washington's landscape. Scientists rejected him for decades. At 96, he received geology's highest honorJ. Harlen Bretz, a pioneering geologist, introduced a groundbreaking theory about the Ice Age floods sculpting eastern Washington's terrain...
- Karti Chidambaram defends Congress' national song stance, hits back at BJPKarti Chidambaram defended the Congress party's stance on Vande Mataram. He stated the BJP need not cast aspersions on their nationalism. T...
- An Idaho game warden in 1948 put a male beaver named ‘Geronimo’ in a parachute box and dropped it from a plane; 76 beavers later faced the same fate and eventually transformed a landscapeIdaho's game wardens introduced an innovative approach in the late 1940s, using parachutes to relocate beavers. They engineered unique boxe...
- Machhli ado about the return of HilsaThe return of Hilsa fish to the upper Ganga after decades marks a significant triumph in conservation. Government labs are successfully imp...
- In 2014, Maine began developing a fish elevator to carry American shad past Milford Dam. 12 years later, the system could reopen 600 miles of river habitat to a fish whose migration has been blocked for decadesA Maine fish elevator could reopen 600 miles of river habitat for alewives, giving a small fish a much bigger chance to return upstream. Th...
- Cauvery water row: Protests intensify in Mandya over Tamil Nadu releaseFarmers in Karnataka's Cauvery basin intensified protests on Thursday, opposing water release to Tamil Nadu. The Cauvery Water Management A...
- Amit Shah chairs southern CMs conclave, Karnataka CM Shivakumar flags delimitationUnion Home Minister Amit Shah led a meeting of southern chief ministers. Karnataka CM DK Shivakumar raised the delimitation issue and women...
- In 2012, PacifiCorp launched a trap-and-haul program to move adult salmon upstream past Merwin Dam. 14 years later, researchers found 2 stages in the system but 1 decisive bottleneck: young salmon failing to find the artificial current downstreamA trap-and-haul program on Washington’s Lewis River helps adult Chinook salmon bypass Merwin Dam by transporting them in trucks to upstream...
- Karnataka government to protect livelihood of farmers, abide by law on releasing Cauvery water to Tamil NaduKarnataka's Chief Minister D K Shivakumar grapples with a complex challenge around Cauvery water management. He is determined to safeguard ...
- In 1942, Loyalhanna Dam went into operation while Pittsburgh factories produced wartime steel and the army relied on 54,000 pigeons. 84 years later, the dam has prevented more than $658 million in flood damage and its cranes are getting a major overhaulTwo 64-ton cranes at Loyalhanna Dam are receiving a major overhaul after eight decades of service. These aging machines manage massive stee...
- In 2024, managers deliberately cooled the Colorado River to protect the Grand Canyon from invasive smallmouth bass. 2 years later, no bass recruitment had been detected, but the effort cost $19.1 million in replacement powerManagers at Glen Canyon Dam used an unusual strategy to protect native Colorado River fish from invasive smallmouth bass: they deliberately...
- In 1913, the Army Corps launched construction of Troy's Federal Dam, using engineers experienced on the Panama Canal. 113 years later, the lock and dam still supports New York's Hudson River navigation and remains a landmark of American engineeringTroy Lock and Dam: Troy's Federal Dam, built in 1913, supported river navigation for over a century. This engineering project connected the...
- In 1935, this dam submerged entire US town under 60 feet of water; nearly 90 years later, falling lake levels are bringing the 'ghost town' back to lifeHoover Dam Construction: St. Thomas, a historic Nevada town, has reemerged as Lake Mead's water levels decline. The former Mormon settlemen...
- By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonIn an initiative aimed at revitalizing the spawning grounds for the endangered winter-run Chinook salmon, California has been transporting ...
- By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonThe construction of dams along the Sacramento River hindered the natural flow of gravel that is essential for salmon spawning. Efforts are ...
- In 1963, federal engineers completed Glen Canyon Dam in Arizona for water storage and power, which turned the Colorado River colder and disrupted native fish reproductionGlen Canyon Dam altered the Colorado River's temperature and flow significantly. This change negatively affected the endangered humpback ch...
- A ghost town disappeared beneath 60 feet of water after Hoover Dam was built; Lake Mead’s decline is bringing it back to lifeA submerged ghost town named St. Thomas is reappearing as Lake Mead's water levels drop. This former Mormon settlement was flooded after th...
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