Glenn and his colleagues have took 328 colonies of massive Porites collars from 69 reefs of Great Barrier Reef to study the change the coral reefs’ change of Great Barrier reef in Australia. Though their study, their data showed a strong decrease in calcification of Great Barrier Reef for the period 1990-2005(Fig.1). Fro...
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...r other aspects of Great Barrier Reef. Contemplating policies that result in [CO2]atm above 500 ppm appears extremely risky for coral reefs and the tens of millions of people who depend on them directly, even under the most optimistic circumstances(Hoegh-Guldberg et al., 2007). People have to take action to stop the steps of global warming. There are many experts predict the future of coral reefs without human action, for example: Without the stabilization of greenhouse gas concentrations, it seems inevitable that many of the world’s coral reefs will become nonaccreting habitats—they will, based on most common definitions, cease to be coral reefs(Mark 2015; Barbara 2015); Eakin :Unless there is concerted action to reduce greenhouse gases,” he warns, “bleaching will become increasingly common and not just during extraordinary weather events”(Dennis 2010).
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