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			Global warming? Been there, done that, in Antarctica of all places! The southern continent began freezing over 23 million years…		
	
	
			
			
				
				
				 
			
		
		
	
			
			Trail Marker Trees are ancient signposts from a time before GPS, compasses or maps. Shaped and molded by Native Americans…		
	
	
			
			
				
				
				 
			
		
		
	
			
			The earliest ancestor of all vertebrates (including us) appears to have been a tiny, worm-like creature just 2 inches long.…		
	
	
			
			
				
				
				 
			
		
		
	
			
			It is a question that has plagued mankind for centuries yet has been solved with no credible answers: how do…		
	
	
			
			
				
				
				 
			
		
		
	
			
			In a stretch of inhospitable desert 90 miles east of San Diego, a dry wind caresses the dramatic curves of…		
	
	
			
			
				
				
				 
			
		
		
	
			
			Cigarette butts litter the streets of most cities and towns, creating an environmental burden that could easily be avoided. Swiss…		
	
	
			
			
				
				
				 
			
		
		
	
			
			Nuclear power is a controversial topic among people who care for the environment, but nature was creating nuclear power long…		
	
	
			
			
				
				
				 
			
		
		
	
			
			With almost 30 million visitors each year, Niagara Falls is a wildly popular tourist destination. People make their way to…		
	
	
			
			
				
				
				 
			
		
		
	
			
			On May 4, 2007, the residents of the small Kansas town of Greensburg faced one of the worst natural disasters…