1910 



1940 



1950 



1960 



1970 



Year 



20 



15 - 



Figure 2-20. 



Sea level rise at Eastport and Portland over the past 40 years. 

 Sea level is rising at a rate of 0.36 cm (0.14 inch) per year at 

 Eastport and 0.22 cm (0.08 inch) per year at Portland (Hick 

 1972). 



2-43 



10-80 



