The 40 year story of the marine environment recovery in Dokai Bay, which had been ruined by rapid industrialization, can provide major lessons for the recovery of the Sanriku coastal environment destroyed in the Great East Japan Earthquake and Tsunami. An example is the "My Rope, My Compost Ecampaign undertaken in Dokai Bay by local inhabitants, including elementary school children. We have great hopes that the marine environment recovery project on the Sanriku coast will succeed due to the cooperation of all coastal residents, including those of the big cities, but centering on those in the fishing industry.

Although life came into existence because this is a planet of water, water is curiously not always necessarily an ally of life activity. Water acts to greatly inhibit synthesis of the proteins and nucleic acids that represent the basic molecules of life. Water is a paradoxical entity, in that it is able to support life activity precisely because it is detrimental to it, and the existence of life is founded on the tension between itself and water. Recognizing this leads to an understanding of the basic principles of life's strategy.

Japan, as an island and trading nation, must rely on maritime transport to carry out the majority of its import and export activities, which are essential to maintaining its economy and standard of living. Maritime transport is thus a lifeline for the country. Hindrance to maritime transport by the growing problem of piracy in waters off the coast of Somalia, being a real threat to Japan's sea-lanes, is now a national security problem. While there are limits to government measures, activities by the Japan Maritime Self Defense Force and Coast Guard, and maritime transport corporate efforts, Japan, as a maritime state, must carry out even further measures in order to participate in international coordination.