Read here. Global warming alarmists and IPCC Climategate scientists have long been predicting that coral reefs will be destroyed by global warming, along with the the associated coral fisheries and tourism. This purely speculative prediction, based on zero empirical evidence it appears, has also been determined to be false as so many other climate doomsday predictions.
The Yamano et al. study discovered that tropical reefs adjacent Japan have expanded northward and remained stable along their southern end while modern global warming has taken place. The inescapable conclusion, based on this latest research, is that coral species easily and positively adapt to a climate change of warming; plus, the conclusion being 180 degrees opposite of the coral-doomsday prophecies from the IPCC-related scientists.
"We show the first large-scale evidence of the poleward range expansion of modern corals, based on 80 years of national records from the temperate areas of Japan, where century-long measurements of in situ sea-surface temperatures have shown statistically significant rises. Four major coral species categories, including two key species for reef formation in tropical areas, showed poleward range expansions since the 1930s, whereas no species demonstrated southward range shrinkage or local extinction. The speed of these expansions reached up to 14 km/year, which is far greater than that for other species. Our results, in combination with recent findings suggesting range expansions of tropical coral-reef associated organisms, strongly suggest that rapid, fundamental modifications of temperate coastal ecosystems could be in progress." [Hiroya Yamano, Kaoru Sugihara, Keiichi Nomura 2011: Geophysical Research Letters]