australia is home to the great barrier reef.
australia is home to the great barrier reef.
what country is home to the great barrier reef?
australia
great barrier reef (disambiguation)









































the great barrier reef is the world's largest coral reef system off the coast of australia.









































great barrier reef may also refer to:









































section::::places.









































bullet::::- great barrier reef airport, an airport in queensland









































bullet::::- great barrier reef marine park, a marine protected area









































section::::arts, entertainment, and media.









































bullet::::- great barrier reef (2015 tv series), first aired in 2015









































bullet::::- great barrier reef (tv series), first aired in 2011









































bullet::::- , a 2007 non-fiction book by pat hutchings, mike kingsford, and ove hoegh-guldberg









































section::::see also.









































bullet::::- barrier reef (disambiguation)









































bullet::::- barrier reef (tv series)









































bullet::::- gbr (disambiguation)
great barrier reef (disambiguation)
coral is a calcifying organism, putting it at high risk for decay and slow growth rates as ocean acidification increases. aragonite, which impacts the ability of coral to take up caco, decreases when ph decreases. levels of aragonite have decreased by 16% since industrialization, and could be lower in some portions of the great barrier reef because the current allows northern corals to take up more aragonite than the southern corals. aragonite is predicted to reduce by 0.1 by 2100. since 1990, calcification rates of "porites", a common large reef-building coral in the great barrier reef, have decreased by 14.2% annually. aragonite levels across the great barrier reef itself are not equal; due to currents and circulation, some portions of the great barrier reef can have half as much aragonite as others. levels of aragonite are also affected by calcification and production, which can vary from reef to reef. if atmospheric carbon dioxide reaches 560 ppm, most ocean surface waters will be adversely undersaturated with respect to aragonite and the ph will have reduced by about 0.24 units – from almost 8.2 today to just over 7.9. at this point (sometime in the third quarter of this century at current rates of increase) only a few parts of the pacific will have levels of aragonite saturation adequate for coral growth. additionally, if atmospheric carbon dioxide reaches 800 ppm, the ocean surface water ph decrease will be 0.4 units and total dissolved carbonate ion concentration will have decreased by at least 60%. at this point it is almost certain that all reefs of the world will be in erosional states. increasing the ph and replicating pre-industrialization ocean chemistry conditions in the great barrier reef, however, led to an increase in coral growth rates by 7%.
impacts of ocean acidification on the great barrier reef