Over the last 50 years the thermal energy in the world’s oceans have increased by 20 x 10 ²² J. What does this mean for the average temperature?

Calculate the average increase in temperature associated with this increase in energy. The world’s ocean has an area of 361 million square kilometers, and an average depth of 3730 m. The density of seawater is 1025 kg m ^-3 and the specific heat of seawater is 3850 J kg ^-1 oC ^-1 .