The salt lake called the Dead Sea that borders Isreal and Jordan is shrinking at a rate of 3.3 feet per year. It is believed that the reason behind this is mainly human action. With the Dead Sea requiring so much of it's water coming in from other sources, when all the water it used to be getting supplied with is being consumed or used for other things, there is not enough water supplied to maintain water levels. Jordan and Isreal signed a deal last year to build a canal from the Red Sea to the Dead Sea in order to help fix its water level problem. The sea is the lowest point on our planet at over 1,000 feet below sea level and is one of the saltiest bodies of water in the world at 34% salinity.