Salt poses an alarming threat to our environment and drinking water, according to a study published in the scientific journal Nature Reviews Earth & Environment. Over the past 50 years, human activities have resulted in an excess of salt ions in our waterways, soil, and air, which is causing significant problems. Sujay Kaushal, the lead author of the study and a geologist at the University of Maryland, describes this issue as a “sleeping giant” that affects everything from crop growth to industrial processes.
The improper distribution of salt is a major contributing factor to this problem. Road salt, in particular, is a significant culprit, with approximately 44% of all salt usage in the United States from 2013 to 2017 related to de-icing roads. This excessive use of road salt not only harms wildlife but also contaminates our soil and pipes, leading to the presence of harmful particles in drinking water. The infamous lead-contamination crisis in Flint, Michigan serves as a stark example of the consequences of salt infiltration.
Efforts have been made to address this issue, with some communities experimenting with alternative de-icing methods to minimize the negative effects. However, more work is needed to combat the escalating problem. Despite Earth being covered in 75% water, only 3% of it is freshwater, and even that is under threat. Rising global temperatures have resulted in the melting of glaciers, ice caps, and snowy mountains, which not only contributes to rising sea levels but also raises concerns about the availability of freshwater.
The study from Nature Reviews Earth & Environment emphasizes the urgent need to establish environmental limits and thresholds for salt ions and take action before irreversible damage occurs. Commenters on The Washington Post article express their concerns over the damaging effects of road salting and advocate for finding better alternatives.
In conclusion, the excessive presence of salt in our environment poses a significant threat to our drinking water and overall ecosystem. Addressing this issue requires a collective effort to identify and implement alternative solutions before irreparable damage occurs.
