Can pumping up cold water from deep within the ocean halt coral bleaching?

Source: Science Daily

Rising ocean temperatures cause marine heat waves, which place stress on living coral animals, as well as the photosynthetic algae on which they depend for energy. A new study is showing potential for the use of artificial upwelling (AU)– or the application of cooler, deep water — as a way to mitigate the thermal stress on corals.

https://www.sciencedaily.com/releases/2020/09/200916113411.htm