Brine rejection that drains from the newly formed ice is replaced by a weak flow of relatively fresh water, from the liquid region below it. The new water partially freezes within the pores of the ice, increasing the solidity of the ice. As sea ice ages and thickens, the initial salinity of the ice decreases due to the rejection of brine over time [Fig. 2]. While the sea ice ages, desalinization occurs to such a degree that some multiyear ice has a salinity of less than 1 PSU. This occurs in three different ways: Brine rejection occurs in the sea ice packs
Great Salt Lake rise and fall, mercury accumulation does as well. About 16 percent of the mercury comes in from rivers, and 84 percent comes from the atmosphere in a non-toxic, inorganic form. The non-toxic mercury is converted into toxic methyl mercury by bacteria which thrive in the more saline water of the North arm affected by the causeway. Great Salt Lake contributes an estimated $1.3 billion annually to Utah's economy, including $1.1 billion from industry (primarily mineral extraction), $136 million from recreation, and $57 million from the harvest of brine shrimp. Solar evaporation ponds at the edges of the lake produce salts