New federal air-pollution restrictions will affect cruise and some other vessels sailing Alaska waters.
But they will not impact state ferries.
A few more than a dozen activists gathered at the national headquarters of the Environmental Protection Agency protesting Shell's request for a waiver from the Clean Air Act.
Alaska Natives are in Washington, D.C. – urging lawmakers to pass climate change legislation. Some believe that’s the best way to get federal money for relocating several villages.
The state of Alaska is suing to block the federal government from enforcing regulations for emissions from cruise ships and marine cargo carriers.
Shell Oil is seeking to changes to the air permit for one of its drill ships after a spokesman says generator engines tested slightly above permit levels for ammonia and nitrous oxide.