What happens if Great Salt Lake dries up?

However, the most deleterious effect of the Great Salt Lake drying up is that the air surrounding Salt Lake City could sporadically become poisonous. Since the bed of the Great Salt Lake holds high levels of dangerous particles like arsenic, antimony, copper, zirconium, and various heavy metals.



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Water experts say it's going to take more than one big year to fill the Great Salt Lake. SALT LAKE CITY — Ever since The Great Salt Lake hit its lowest water level on record in November 2022, concerns over things like arsenic in the exposed lake bed have only grown.

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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 recent report suggests the lake could disappear within five years. In fall 2022, the Great Salt Lake hit its lowest water level since record keeping began. The lake's elevation sank to nearly six meters below the long-term average.

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

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So just how bad is it, really? 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.

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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 state of Utah owns basically most of the Great Salt Lake, including Antelope Island, Fremont Island, Gunnison Island, the Ogden and Farmington bay wetland areas, along with the entire lakebed.

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SALT LAKE CITY (ABC4) — The Utah Division of Water Resources is sharing good news about the impacts all the rain is having on the Great Salt Lake, whose water levels reached a historic low last year.

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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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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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One of the world's largest hypersaline lakes, the Great Salt Lake is on the verge of collapse due to climate change, drought, and population pressures that have reduced inflows and shrunk the lake by more than two-thirds.

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However, the most deleterious effect of the Great Salt Lake drying up is that the air surrounding Salt Lake City could sporadically become poisonous.

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Within years, the lake's ecosystems could collapse and millions will be exposed to toxic dust contained within the drying lakebed, unless drastic steps are taken to cut water use. A team of 32 scientists and conservationists caution that the lake could decline beyond recognition in just five years.

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The Great Salt Lake is home to many important biological and wildlife species, from archaea, to bacteria, to phytoplankton (400+ species). Perhaps the three most apparent species that can be seen with the naked eye are brine shrimp (tons), brine flies (billions) and birds (millions).

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With a salinity level over 40 percent, Don Juan is significantly saltier than most of the other hypersaline lakes around the world. The Dead Sea has a salinity of 34 percent; the Great Salt Lake varies between 5 and 27 percent. Earth's oceans have an average salinity of 3.5 percent.

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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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3 ways we're working to preserve Great Salt Lake
  1. Improving watershed management. Management of water is critical to safeguarding Great Salt Lake. ...
  2. Enhancing water conservation. Utah is committed to using our existing water supply as wisely as possible and ensuring the success of our state. ...
  3. Optimizing agricultural tools.


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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 drying of lakes and reservoirs around the world is increasingly stressing water supplies for drinking and agriculture, endangering habitats for plants and fish, reducing the capacity to generate hydropower, and threatening marine recreation and tourism.

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