World Oceans Day reminds us of the importance of the oceans. The oceans are the heartbeat of our planet, the source of life. The day draws our attention to the challenges that are affecting our oceans, such as plastic pollution, overfishing, and sea temperature rise.The United Nations officially recognized World Oceans Day in 2008. The day aims to remind us of the impact of the oceans on mankind and mobilize the world to protect marine habitats.This year’s theme is ‘Planet Ocean: The tides are changing’, which inspires us to work together for the health and well-being of the oceans.World Oceans Day also reminds us that the oceans are the lungs of our planet and a major source of food and medicine. It supports our lives and all other living things. The ocean produces at least 50% of the planet’s oxygen, is home to Earth’s biodiversity, and is the main source of protein for more than a billion people worldwide. The day aims to educate the public about the impacts of human actions on the ocean, to develop a worldwide movement of citizens for the ocean, and to unite the world’s population in the sustainable management of ocean resources.