I.

If you don't live in Utah, you may not have heard that the Great Salt Lake is in trouble. It's been rapidly dwindling in size and depth, and while it's never going to disappear entirely (though look at the Aral Sea), there are always issues when an environment goes through a rapid transformation. The big worry is that the lake will become so salty that even brine shrimp and brine flies can no longer survive. This would eliminate a major source of food for migrating birds, while at the same time a shrinking lake also removes the wetlands they use for mid-migration habitat. There are other potential problems as well, but you get the idea.

I'm old enough to remember when we were having the opposite problem, when the lake was so high that it threatened I-80 (the stretch west of SLC), the SLC airport, and various communities and businesses perched around the edge of the lake. This was in the mid-80s and my father worked at one of those businesses. This particular business would take lake brine, pump it into shallow ponds, allow the water to evaporate away, and then harvest the minerals left behind. Their big cash product was potash, which is used in fertilizers. The rising lake threatened to flood their carefully managed pond system, so it was a real ongoing crisis for my father back then.

After a couple of years of hard fighting, the lake eventually won. The outer dike was breached and lake water flooded into the pond system, completely wiping out the productive capacity of the business. It was a dark day...