World Oceans Day June 8 is to honor & help protect conserve the world’s oceans. The ocean provides us with many resources services including oxygen, climate regulation, food sources, medicine & more. The sea is important because it: Provides food for people; Makes oxygen; Impacts weather everywhere; Purifies water that runs to the ocean, evaporates & falls as rain. Garbage, biota & bacteria end up in the ocean, clean up after yourself. 18th annual 2020.