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AQUATIC ECOSYSTEM RESTORATION
Colorado began removing non-native brook trout from two mountain creeks in 2011; 13 years later, rare native cutthroat trout had increased more than 11-foldOver a span of 13 years in Grand County, Colorado, dedicated conservation efforts have led to a remarkable surge in cutthroat trout populat...- North Carolina removed invasive carp from Lake Mattamuskeet in a restoration effort; an earlier removal campaign increased water clarity more than fourfold and expanded underwater grasses by 16,000 acresLake Mattamuskeet in North Carolina has seen a dedicated restoration initiative aimed at curbing the invasive common carp's adverse effects...
- Chicago’s lost wetlands are coming back. Here’s how scientists, beavers and muskrats are rebuilding the Calumet regionSometimes restoring nature isn't about building something new. It's about fixing what was broken and giving nature the chance to rebuild it...
- In 2004, Virginia turned dredged fossil shells into 85 acres of oyster reef in one river; later monitoring counted 76.2 million live oysters on the restored reefsIn 2004, an 85-acre reef network was built in the Great Wicomico River using dredged fossil oyster shells. Monitoring revealed that this re...
- In 2003, Florida reused 6,000 tons of concrete rubble in Pensacola Bay: The material helped build a 7-acre oyster reef, and seagrass later spread to 2.5 acresDowntown Pensacola has witnessed an inspiring transformation through Project GreenShores, which repurposed recycled concrete rubble into a ...
- In 2019, Aidan Gallagher linked fan pledges to mangrove planting in Madagascar. 6 years later, the campaign had planted 113,706 trees and removed 38 million kg of carbonIn July 2025, UNEP announced a $7.1 million grant-supported initiative for Madagascar that includes plans to restore 3,000 hectares of mang...
- In 2019, 2 beavers were released in Yorkshire’s Cropton Forest. 5 years later, 6 dams are slowing floodwaters and reviving wildlifeA five-year experiment in North Yorkshire shows how beavers can reshape ecosystems while helping manage floodwater. Two beavers built six d...
- In 1995, 31 grey wolves returned to Wyoming's Yellowstone Park; decades later, 9 beaver colonies are thriving as willow forests recover and erosion risks fallIn 1995, wildlife experts decided to reintroduce the grey wolf in Yellowstone Park, Wyoming. What followed was nothing short of a miracle. ...
- In 2018, Buffalo moved 56,000 cubic yards of mud dug from its waterways to Unity Island; habitat quality rose 128.8%, and fish species doubledOnce thought to be lifeless, the Buffalo River is undergoing a remarkable transformation, showcasing the power of ecological restoration. E...
- In 2019, New York restaurants turned discarded oyster shells into a unusual plan to rebuild the city’s historic reefsIn 2019, New York restaurants were taking part in an unusual environmental effort: recycling discarded oyster shells for use in rebuilding ...
- In the 1940s, a few snakes arrived in Guam hidden in military cargo; decades later, nine of the island’s 11 native forest bird species were goneGovernment bodies are collaborating with local citizen scientists in a proactive approach towards snake removal on Guam. This program's aim...
- How 285 reef balls are turning an ocean desert into a thriving ecosystem in Newfoundland and Labrador’s Placentia BayA team of ocean scientists in Newfoundland and Labrador are turning one ocean dead zone into a thriving marine ecosystem and the live camer...
- In 2016, Ed Sheeran transformed 1 ploughed field into a wildlife pond and meadow. 5 years later, 14,000 trees had been planted and wildlife was thriving across the estateEd Sheeran has undertaken a rewilding project on his Suffolk property as part of his commitment to wildlife and environmental conservation....
- Florida dumped 500,000 tonnes of used oyster shells into the sea. It has now developed new reefs, cleaner water and is recovering the coastal environmentOver the past 16 years, Florida has successfully returned over 500,000 tons of shells to the Gulf, providing vital surfaces for young oyste...
- ARSBC bought HMCS Chaudière from Canada’s Defence Department for $1 plus 7 cents GST; after its reef conversion, glass tunicates came to cover much of the vesselThe Canadian warship HMCS Chaudière was acquired for a symbolic price and subsequently sunk, transforming it into a vibrant artificial reef...
- Utah moved Beavers into a dying river to restore it. Six years later, the results were not what scientists expectedResearchers relocated beavers to Utah's arid Price and San Rafael rivers in 2019. Many animals did not survive, while some built dams at re...
- Nearly 200 years after bison were hunted to extinction in northern Mexico, 47 were reintroduced in 2025, and are now helping prevent wildfires and regenerate their lost ecosystemIn a remarkable conservation effort, 47 American bison have been reintroduced to Mexico's Cuatrociénegas region after vanishing for nearly ...
- In 2011, Colorado linked 90% of Lower Gunnison River selenium pollution to farming. 11 years later, farm work cut selenium by 50%, helping the river meet standards todayFor years, selenium from irrigated farmland posed a challenge for Colorado’s Lower Gunnison River. Irrigation can mobilize naturally occurr...
- In 1996, Idaho listed Fish Creek for sediment after erosion damaged aquatic habitat. 22 years later, restoration helped it earn the maximum 3.0 score for cold-water lifeFish Creek in Idaho was listed as impaired for sedimentation in 1996. Collaborative efforts by various stakeholders improved road surfaces ...
- In 1997, US Army began Maryland's oyster restoration partnership in Chesapeake Bay. 24 years later, about 600 acres of new oyster bars had been created across MarylandMaryland partnership formally began with the project cooperation agreement executed in February 1997. Restoration sites eventually included...
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