A new research and monitoring program aims to conserve threatened but overlooked saline ecosystems.
from its source, Lake Abert and Summer Lake, two dried-up saline lakes in southern Oregon. This has happened before: Saline lakebeds are some of the West’s most significant sources of dust. California's Owens Lake is the nation's largest source of PM10, the tiny pollutants found in dust and smoke, while plumes blowing off the 800 square miles of the Great Salt Lake’s exposed bed have caused toxin-filled dust storms in Salt Lake City.
The Interior West is full of salt lakes, created when snowmelt pools in the valley bottoms of the Basin and Range region. The valleys have no outflow, so the water remains until it evaporates, leaving behind the particles that were suspended in it. These accumulate over time, giving the lakes a high salinity.
Yet this balance of runoff, salts, and evaporation also makes saline lakes highly sensitive to climate change. Decreasing snowpack and increasing evaporation due to higher temperatures means that there is less water in the lakes and a higher concentration of salt. That stresses shrimp and flies, which have adapted over time to specific salinities, and it also exposes dry lakebeds, creating dangerous dust storms.
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