In Yosemite, the National Park Service has put forth a wise plan to ease the congestion, particularly in the magnificent Yosemite Valley. Its proposals include closing some horse, bicycle and raft rental facilities in the area — plus shutting swimming pools.
The macro-solution is: sage population policies here and abroad. Though the United States has a fairly low fertility rate, its population, now 314 million, is projected to grow by almost 19 million through 2050. Keeping our birthrates and immigration numbers in check would go far to stem the tide.