Noise reduction: the tankers are NOT the problem with noise in the Straits here.  At ONE tanker a day, that is drop in the bucket of 5600 non-tankers a years already.  What is a major issue of noise irritating the Orca whales is: whale watching boats.  These high speed large tourism boats have higher pitched powerful outboard and inboard engines.  They are constantly coming in to harrass the whales in close proximity, 3 seasons a year and then some.  They purposely park themselves 200 yards ahead of the whales so the whales come right close to the boats.  This entire whale watching industry should be shut down before there is any talk of the One Tanker a Day w will see once the pipeline is built.  I have video of the whale watching operators in action for proof - disgusting.