The Marsh That Restored 
					Itself   
					
		
		 When 
		people drive by the salt marsh along the Bay Bridge approach, they 
		probably think that the marsh has existed since primeval times. But 
		their expectations deceive them. The historical marsh ended at the 
		MacArthur Freeway Maze. The driver is on an artificial peninsula built 
		for bridge access. The marsh they see built itself in this century, 
		largely from sediments washed out of the Sierra.
When 
		people drive by the salt marsh along the Bay Bridge approach, they 
		probably think that the marsh has existed since primeval times. But 
		their expectations deceive them. The historical marsh ended at the 
		MacArthur Freeway Maze. The driver is on an artificial peninsula built 
		for bridge access. The marsh they see built itself in this century, 
		largely from sediments washed out of the Sierra.
		
		Concentrated and prolonged human disturbance is the cause of most 
		degraded habitats. What I think is important to understand is that, 
		given time, the natural processes producing a landscape still operate 
		and are quite robust. In most cases, if we can simply marshal the 
		societal will to stop human interference, nature will heal her own 
		wounds.
		
		Christopher Richard
		Oakland Museum of California
					
					
		
		 "Walk Along the Water"
  
		"Walk Along the Water" 
  © Oakland Museum of California, used with permission. 
		
					
	
	
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