This is propaganda and an ad, not science. It's utter bullshit. Perhaps is we stopped polluting it might be a good start. My grade 4 science project was about the imminent demise of the barrier reef because of acanthaster planci. The barrier reef was supposed to have been gone between 1970 and 1980 according to Time Life books of the day. Turns out we've been lied to all along, it's pollution and nothing else. Coral is one of the oldest life forms on earth and has genes it was switch on to survive 7000ppm Co2 and 15C degrees warmer than this. The only things it can't survive are things is hasn't encountered before: dioxins, heavy metals and so on. Note that only coral near man is affected. Open ocean corals are all fine. http://getcrazywithcoral.weebly.com/uploads/5/3/9/1/53911343/6460712_orig.png Note that bleached areas mysteriously come back when they're monitored and dumping is stopped. Note that Cuba's corals are fine and stick out like a sore thumb in an otherwise dead caribbean. When the Russians left Cuba could no longer afford synthetic fertilizers, anti fungals and pesticides and their coral never declined. Corals can turn certain genes on and off to cope with heat http://science.sciencemag.org/content/early/2014/04/23/science.1251336 Threatened Caribbean Coral Is Able to Mitigate the Adverse Effects of Ocean Acidification on Calcification by Increasing Feeding Rate http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0123394 It's the pollution, stupid: Regional coral responses to climate disturbances and warming is predicted by multivariate stress model and not temperature threshold metrics http://link.springer.com/article/10.1007/s10584-015-1399-x “After the Soviets pulled out [in 1991], Cuba couldn't afford fertilizers and pesticides, so they were essentially forced into organic farming — and that's had a beneficial effect on corals,” http://www.pri.org/stories/2015-02-02/coral-coast-cuba-flourishing-rare-glimmer-hope-threatened-ecosystem Causes and remediation of bleaching in aquaria: "Then there’s bleaching due to a lack of required nutrients, unacceptable salinities, poisoning by metals, too much red light, the use of some medications, or being over-stressed for some reason. (ex. Duquesne & Coll 1995, Brown 1997, Braley 1998, and Borneman 2001). And, as if that’s not a long enough list, the bleaching of some corals can be disease-related, too (Kushmaro et al. 1996 and Rosenberg & Loya 1999), and was also suggested by Norton et al. (1995) as a probable cause for some cases of tridacnid bleaching. In other words, there are lots of things that can cause bleaching." http://www.tfhmagazine.com/details/articles/clam-and-coral-bleaching-part-ii-what-to-do-if-it-occurs-in-your-aquarium.htm Many many articles refer to the 1989 bleaching event worldwide (this was the hottest year on record, no year since has been as warm - NASA) as purported "proof" it's "global warming". Example from one article: This is fact: "Coral reefs around the world are under pressure from multiple threats. A burgeoning gas industry – such as that near Gladstone – is one of the newest of these. Pollution, sedimentation, declining water quality and overharvesting are among other ongoing problems." Ie this is what has happened. This is opinion: "In the long-term, global climate change is regarded as an additional ominous threat to the viability of tropical coral reefs. Ie. this is what might happen. A common idea, it's always a problem that might happen in the future, a meme that first began in the late 1970s and has never once, not ever, been true. http://theconversation.com/back-from-the-bleach-how-isolation-helps-coral-reefs-recover-3983 (Translation: "leave them alone, stop dumping, they grow back just fine despite warming and acidification nonsense") The problem is it's nothing to do with 1989, pollution didn't start then, this is the New York Times a decade prior: Experts Are Puzzled by Widespread Coral 'Bleaching' in Caribbean By WILLIAM STEIF, Special to the New York Times Published: December 15, 1987 ST. CROIX, V.I., Dec. 14— Scientists gathered here from around the Caribbean last week to discuss a mysterious ''bleaching'' of coral throughout the region, a change that some fear portends severe damage to rich reef ecosystems. http://www.nytimes.com/1987/12/15/science/experts-are-puzzled-by-widespread-coral-bleaching-in-caribbean.html