An ocean current is a continuous, directed
movement of seawater generated by forces acting upon this mean flow,
such as breaking waves, wind, the Coriolis effect and
temperature and salinity differences, while tides are caused by the
gravitational pull of the Sun and 
Moon.
The moving water in the oceans transports heat and so it has a large impact on Earth’s climate. This in turn affects the species of plants, animals, reptiles, fish and all the other creatures, not only in the Oceans themselves, bu on the adjoining land masses. For this reason, Ocean Currents are an important part of the environment, and this short Course aims to give learners an insight into their effects and importance to every country in the world.