Waves of annihilation have beaten coral reefs down to a fraction of what they were 40 years ago, and what’s left may be facing creeping death: The effective extinction of many coral species may be weakening reef systems thus siphoning life out of the corals that remain.
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One-third of plant and animal species could be gone in 50 years, study says
A new study by University of Arizona researchers presents detailed estimates of global extinction from climate …