Five world-renowned scientists have signed a letter to UNESCO Director-General Audrey Azoulay to "thank UNESCO for its leadership in recognising the threat of climate change to the Great Barrier Reef World Heritage property."
Professor Terry Hughes, Professor Ove Hoegh-Guldberg, Dr Sylvia Earle, Professor Johan Rockström and Professor Andréa Grottoli sent the letter last night from Australia.
Last month, UNESCO released a draft decision recommending the Great Barrier Reef be inscribed on the List of World Heritage in Danger.
The scientists' letter is a strong show of support for UNESCO from some of the most revered coral reef experts in the world.
They write UNESCO "has made the right decision" to recommend the in Danger listing of the Great Barrier Reef, because "tragically, the Reef has suffered extensive losses in recent years through three severe coral bleaching events, fuelled by global warming."
They stress that protecting the Reef requires global action to reduce carbon emissions, "yet Australia has so far not pulled its weight in this global effort."
"An 'in Danger' listing for the Great Barrier Reef will focus action on how to limit further damage to the Reef. It presents a challenge to all nations to immediately reduce greenhouse gas emissions," said Prof Terry Hughes.
"Australia has a lot to lose with current emission pledges only getting us to global surface temperatures of a lethal 3 degrees C above preindustrial levels," said Prof Hoegh-Guldberg, who also coordinated an Australian Academy of Science report on climate change earlier this year.
"We therefore greatly appreciate UNESCO's draft recommendation for Australia to urgently address the threat of climate change and welcome the draft report's recognition that 1.5 degrees C is widely recognised as a critical threshold for the property," the letter says.
The letter acknowledges efforts by the Australian and Queensland Governments to tackle sediment and nutrient pollution, which were also commended by UNESCO.
But, the scientists add UNESCO's draft decision "notes with the utmost concern that the water quality targets in the Reef 2050 Plan have not been met."
Finally, the scientists pledge that they "stand ready to help support UNESCO's efforts to secure the future of this global icon."
The 44th session of the World Heritage Committee, held online from 16 to 31 July 2021, will decide whether to accept or modify the draft decision on the Great Barrier Reef.
The Australian government has said it will strongly lobby member countries of the World Heritage Committee to remove the in Danger recommendation.
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