In "A Reef in Time: The Great Barrier Reef from Beginning to End" the highly respected coral reef expert J. E. N. Veron describes both the history of reefs in general and the Great Barrier Reef in particular. Certainly this book is not exactly uplifting because it outlines the future end of the reef, not in space, but in time. This end is to a large part premature and almost certainly to be brought on by human activity.
As Veron notes reefs have come and gone throughout the history of the earth, appearing in the Devonian, Permian and Triassic, only to be destroyed in mass extinction events. New and different reefs returned, but not until after hundreds of thousands to millions of years. On both sides of the Rio Grande Valley, where I now live, are immense remains of middle Permian reefs, all of which disappeared in that mother of all extinction events which marks the Permian-Triassic boundary. The reefs now stand over 4000 feet above sea level, a monument to impermanence. Such would eventually be the fate of the monumental Great Barrier Reef, but in tens of thousands of years at least. The activities of humans (in causing global warming, direct damage to reefs and acidification of the oceans) may now cause the same destruction in hundreds of years or less.
What is to be done? Venon thinks that there is some cause for hope, but I am unsure that that such hope is warranted. In this I would like to be wrong. However I see no political will on the part of either governments or populations to curb their activities in time before tipping points are reached that commit us to a major disruption of the planet. In essence we in the United States have wasted nearly eight years that we really did not have because of an administration that preferred wishful thinking to reality. Still I cannot just blame the United States as even the European Union will not reach its own goals and China and India, among others, are hurrying to reach the same levels of greenhouse gas emissions as the developed world.
Venon has written a thoughtful and well documented book that will certainly educate the reader in the current knowledge of reefs and the likely result of our current predicament. I recommend it, but be aware that you may find it depressing, despite Venon's attempts to be upbeat.