<s>[INST] Much of the world is getting wetter due to climate change, but for some areas, water scarcity is even more extreme due to changes in precipitation patterns. The snowpack that the western United States and other mountainous regions use as a reservoir for water is decreasing at an alarming rate. This reduction in snowpack may disrupt the ecosystems of these regions, which could lead to decreased biodiversity and negatively impact natural vegetation.

A decrease in snowpack can also impact human settlements in these regions. For example, lower water tables or changed stream flow patterns could lead to decreased crop yields and supply chain shortages. Furthermore, disruptions to recreational activities, such as skiing and hiking, could result in decreased tourism and negative economic impacts.

Which of the following options is the greatest logical implication of a decrease in snowpack for the western United States?[/INST]