Satellite images show extent of dwindling water levels in Utah's Great Salt Lake

New satellite images from the European Space Agency have shown the extent of dwindling water levels in Utah's Great Salt Lake, a month after it reached its lowest water level ever recorded.

The report compares satellite images from 1985 and 2022, showing falling water levels and decreasing size of the lake. It covered about 3,300 sq miles at its peak in the 1980s and lost half of its surface area from the historical average in recent measurements. The new record, recorded last month, was the second historical low reached in less than a year.

Data from the US Geological Survey shows that the decrease in water levels has left about 770 sq miles of the lakebed exposed in the wake of a megadrought that has swept the south-west of the US.

The disappearance of the lake has been caused by drought caused by climate breakdown and water use, along with the redirection of water from streams used to replenish the lake for use in residential spaces and agriculture.

The demand for the lake's water has increased as the population of Utah climbs. It is estimated that the population will increase by 50% by the year 2060, making it the fastest growing state in the US.

The lake is home to many animals and is home to about 10 million migratory birds every year, with its associated wetlands. Around 330 different species stop over the lake for food, which is now under threat due to rising salt levels.

The drying lake also poses threats to human health, as well as endangering wildlife. Lakebed exposure releases dust containing dangerous remnants of mining activity in the region, such as copper and arsenic, which can be blown into nearby settlements and can cause respiratory issues if inhaled.

The lake is likely to continue shrinking until at least autumn or early winter, when rainfall and snow will begin to replenish some of the water lost.