Can scientists reverse Tahoe's worst environmental disaster?

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Can scientists reverse Tahoe's worst environmental disaster?
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The nearly 600-acre marsh is key to restoring Lake Tahoe's clarity and fighting climate change.

An aerial photo of the Tahoe Keys and the Upper Truckee River Marsh before restoration efforts began. The Tahoe Keys development carved up half of the marsh and dried up the rest, sending plumes of sediment into Lake Tahoe.Lake Tahoe.

Today, a large-scale effort is underway to restore what’s left of the Upper Truckee River Marsh. I visited the site of the largest watershed program in Lake Tahoe’s history earlier this summer, where an $11.5 million project to reclaim an abandoned, polluted arm of a marina is wrapping up this year.infestation are buried beneath several feet of dirt — apparently an expert-approved method of repairing the mistakes of the past. Thousands of new seedlings are planted: grasses and willows, mostly.

Stuart Roll, left, and Scott Carroll stand next to the Upper Truckee River and surrounding marsh, discussing the science and art of stream restoration.The Upper Truckee Marsh could have disappeared in the same way, easily. After building the Tahoe Keys, developers had plans to continue their expansion across the entire wetland, with a golf course and more condos slated for this fragile piece of water and land.

The Washoe Tribe were the original people who lived on this land. But when the Washoe were driven out of their homeland by settlers and miners in the mid-1800s, and when the Tahoe Basin was clear-cut to support the silver mines in Virginia City in the 1860s, the Upper Truckee Marsh was left out to dry.

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