Coral reefs are in grave peril, and the consequences of their extinction could be catastrophic. They support more than a quarter of all marine life, but 90 per cent could disappear by 2050, largely as a result of climate change.
Every one of the world’s coral reefs could bleach by the end of the century, unless there are drastic reductions in greenhouse-gas emissions, the United Nations Environment Programme (UNEP) has warned.
If current trends continue and the world fails to reduce greenhouse gas emissions, nearly all of the world's coral reefs will suffer severe bleaching – the gravest threat to one of the Earth's most important ecosystems – on annual basis, the United Nations environment agency today reported.
More than half of the world’s fragile coral reefs are under threat and most of our major fish stocks are now overexploited, according to the latest global assessments on the state of world’s high seas and large marine ecosystems launched today by United Nations Educational, Scientific and Cultural Organization (UNESCO)’s Intergovernmental Oceanographic Commission.