In concert with various universities and research organizations, GBRMPA was planning to spend at least 100 million Australian dollars (about $70 million in American money) investigating ways it might intercede on the reef’s behalf. These included: deploying underwater robots to reseed damaged reefs, developing some kind of ultrathin film to shade reefs, pumping deep water to the surface to provide corals with heat relief, and cloud-brightening. This last possibility would involve spraying tiny droplets of salt water into the air to create a kind of artificial fog.
