JakartaCapital Environmental Blog, Crown Eco Management- The heavilyforested city of Ketchikan, Alaska, is built on rock and surrounded by water.Every commodity that comes into Ketchikan must arrive by sea or air. The use offuel oil is problematic for both economic and environmental reasons because theoil must be obtained and refined elsewhere and transported (using additionalfuel). What's more, fuel oil is subject to price instability.