Is the Great Salt Lake drying increasing greenhouse gas emissions? What does the new study reveal?

Researchers have brought attention to a concerning problem with Utah's Great Salt Lake. According to a recent study that was published in One Earth, 4.1 million tons of greenhouse gasses, including CO2, were emitted in 2020 by the lake's exposed bed.This research indicates that these kinds of lake bottoms may contribute significantly—perhaps much more than previously thought—to global warming, as per the reports of MSN.

Impact of lake desiccation

The Great Salt Lake's human-caused drying out has exposed a sizable portion of the lake bed, the study suggests. There has been a significant atmospheric emission of greenhouse gasses as a result of this exposure. As the exposed sediments are rich in organic matter and are broken down by bacteria, Soren Brothers, a curator of climate change at the Royal Ontario Museum and co-author of the study, noted that this contributes significantly to CO2 emissions. In comparison to when the lake is full, the emissions are noticeably higher during the summer.

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Environmental and health effects

The 1,700 square mile Great Salt Lake is experiencing a number of negative consequences due to its diminishing water levels. Because there is less water available, there is more dust and other pollutants in the air, which is bad for the quality of the air and causes respiratory problems for people living nearby. Furthermore, the habitats of nearby fauna, including bird species and brine shrimp, are under danger due to the lake's shrinkage.

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Greenhouse gas emissions

Of the 4.1 million tons of greenhouse gases released in 2020, 94% of them were CO2, according to the study. Methane was among the residual gases, and it traps heat 28 times better than CO2. According to the study, Utah's greenhouse gas emissions have increased by 7% as a result of emissions from the dried lakebed. A feedback loop that could make it harder to keep the lake's water levels stable is created by this increase, which is connected to rising regional temperatures.

FAQs

How much greenhouse gas was emitted from the Great Salt Lake in 2020?
In 2020, the lake emitted 4.1 million tons of greenhouse gases, primarily CO2, according to recent studies.

What effects are being observed due to the lake’s drying?
The shrinking of the lake is causing higher dust levels, poor air quality, respiratory issues for nearby residents, and threats to local wildlife habitats.