Well you could ask same question about lava floating from volcanos to oceans, that much hotter and would have greater impact, or if the sun light would have an

Well you could ask same question about lava floating from volcanos to oceans, that much hotter and would have greater impact, or if the sun light would have an ecological impact on the water because it heat it everyday! I don't know what would few degrees increase in temperature around the capsules would do to the environment, keeping in mind that water is changing all the time due to sea current also that temperature is very local I mean it does not extend more than few inches in the water, if you have any knowledge about thermodynamics you would know that the temperature of two bodies should reach an equilibrium and since the ocean is much bigger the effect of the temperature coming from the data centres is negligible, but all this was an experiment and I am sure the ecological factor was taken in account, but still your question was kinda stupid!