Before revision: Annual themes Overview The United Nations selected the following annual themes for the Day: 2009: "Our Oceans, Our Responsibilities" 2010: "Our Oceans: Opportunities and Challenges" 2011: "Our Oceans: Greening Our Future" 2012: "UNCLOS @ 30" – United Nations Convention on the Law of the Sea (UNCLOS) 2013: "Oceans & People" 2014: "Ocean Sustainability: Together let's ensure oceans can sustain us into the future" 2015: "Healthy Oceans, Healthy Planet" 2016: "Healthy Oceans, Healthy Planet ⁠–Voyaging to a Sustainable Planet: Arrival of the Hōkūle‘a " 2017: "Our Oceans, Our Future" 2018: "Clean our Ocean!
After revision: Annual themes Overview The United Nations selected the following annual themes for the Day: 2009: "Our Oceans, Our Responsibilities" 2010: "Our Oceans: Opportunities and Challenges" 2011: "Our Oceans: Greening Our Future" 2012: "UNCLOS @ 30" – United Nations Convention on the Law of the Sea (UNCLOS) 2013: "Oceans & People" 2014: "Ocean Sustainability: Together let's ensure oceans can sustain us into the future" 2015: "Healthy Oceans, Healthy Planet" 2016: "Healthy Oceans, Healthy Planet ⁠–Voyaging to a Sustainable Planet: Arrival of the Hōkūle‘a " 2017: "Our Oceans, Our Future" 2018: "Clean )