Which Great Lake is disappearing?

A 2015 report to the Utah Legislature predicted demand for water in Utah could overtake supply by 2040. Today, scientists think that date will come much sooner. The Great Salt Lake is already losing an average of 1.2 million acre-feet annually, and it's on track to disappear entirely by 2028.



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Everything You Need to Know About the Lake Mead Drought Water levels have been steadily declining since 2000, leading to the current drought of the popular Lake Mead. In June of 2022, Lake Mead faced a unique situation. Many people were trying to access the lake beyond the usual holiday crowds.

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A series of unprecedented weather patterns brought not only remnants of the west coast's atmospheric rivers but widespread wet avalanches, which are quickly sending spring runoff to the lake and its tributaries. The Utah department of natural resources announced the Great Salt Lake had reached a record low last fall.

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According to a recent study by Brigham Young University, it's possible that Great Salt Lake could dry up completely in the next five years.

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A new scientific report warns the lake is on track to disappear in the next five years, unless water use is cut by as much as 50% annually. I don't know of any other environmental threat that's moving this quickly, said Bonnie Baxter, a Westminster College biochemist and one of the authors of that study.

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Less water going in means higher concentrations of salt and minerals, which threatens the crucial ecological role saline lakes play across the West, as well as the health of the people who live nearby.

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Due to its shallowness (an average of 14 feet deep and a maximum of 35 feet deep), the water level can fall dramatically during dry years and rise during wet years. When snowpack melts in the spring, the lake usually rises about 2 feet. However, record snowpack in 2023 triggered a rise of 5.5 feet!

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The shallow bottom of Great Salt Lake supports a microbial carpet that harness the sun's energy through the process of photosynthesis. This carpet is made up of a community of microbes, including several types of cyanobacteria (also known as blue-green algae), algae and other organisms.

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Set a lake elevation range goal. Invest in conservation. Invest in water monitoring and modeling. Develop a holistic water management plan.

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The precipitous drop in water levels, which has shrunk the Great Salt Lake's footprint by half in the last decades, stems from a two-fold problem: Climate change has decimated the mountain streams that feed the lake, while demand for that same freshwater has ballooned for new development, agriculture and industry.

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Swimming in the Great Salt Lake is safe despite contaminants, researchers say - Axios Salt Lake City.

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Without a “dramatic increase” in inflow by 2024, experts warn the lake is set to disappear in the next five years. “Its disappearance could cause immense damage to Utah's public health, environment, and economy,” the authors wrote in the report.

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Lake Erie averages the highest ice cover Of the five Great Lakes, Lake Erie typically reaches the highest annual maximum ice cover, often exceeding 80 percent.

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Lake Superior is the world's largest freshwater lake by area (31,700 mi2 /82,100 km2). It is also the coldest and deepest of the Great Lakes, with a maximum depth of 406 meters (1,332 feet). By most measures, it is the healthiest of all the Great Lakes.

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Lake Michigan's riptide and longshore tides are unparalleled when it comes to danger among all the Great Lakes. In fact, due to its unnaturally strong winds, it's not unusual for this lake to have strong rip currents that can be dangerous for swimmers.

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Great Salt Lake is between 3.5 and 8 times saltier than the ocean. The organisms that live in the water have special adaptations that allow them to survive such saline conditions. Air blocks much of the sun's DNA-damaging ultraviolet light from reaching the surface of the earth.

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Even when the water temperature is in the 20's (°F), the lake does not freeze, due to the high salt content of the water; but icebergs have been ob- served floating on the lake's surface, formed from freshwater that flows into the lake from tributaries and freezes on the surface before it mixes with the brine.

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Because of the abundant algae and halophiles, as well as the high salinity, the lake does not support fish — but it teems with brine shrimp and brine flies, which provide essential nutrition for migrating birds.

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The precipitous drop in water levels, which has shrunk the Great Salt Lake's footprint by half over the past few decades, stems from a two-fold problem: Climate change has helped decimate the mountain streams that feed the lake, while demand for the streams' fresh water has ballooned for new development, agriculture ...

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Essentially, a water trust would pay irrigators to leave some or all of the water they are permitted to use in the stream or river instead of diverting it to water crops. These water leases could last a single summer or several years. Water leasing is helping restore other ailing saline lakes.

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Most recent data within water-surface elevations show a downward trend. With climate change and Utah's ever growing human population, we expect this negative trend to continue. In fact, it is estimated that the lake is 11 feet lower due to human diversions.

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