Earth’s One Ocean covers more than 70% of the planet’s surface and is vital to survival of life. The oceans determine climate and weather, and are essential to trade, transportation, energy and many industries. It is now widely recognized that much more attention will need to be paid to ocean use planning and management, especially medium to long-term risks in order to secure the sustainability of ocean use. Most of the world’s people live and work close to the ocean, thus integrated marine and coastal management is very important, especially in the proximity of large cities. What is called for is a governance system that must be adaptive, given the many gaps in scientific knowledge about the ocean, and considerable attention must be given to innovation to create an environmentally sound and green ocean economy, i.e., the ‘Blue Economy’. The presentation will address the opportunities of offshore renewable energy applications, and its importance to integrate into ocean planning and management.