SYDNEY: A study released on Friday by an Australian university looking at multiple catastrophes hitting the Great Barrier Reef has found for the first time that only 2 pct of its area has escaped bleaching since 1998, then the world's hottest year on record.
If global warming is kept to 1.5 degrees, the maximum rise in average global temperature that was the focus of the COP26 United Nations climate conference, the mix of corals on the Barrier Reef will change but it could still thrive, said the study's lead author Professor Terry Hughes, of the Australian Research Council's Centre of Excellence for Coral Reef Studies.
"If we can hold global warming to 1.5 degrees global average warming then I think we'll still have a vibrant Great Barrier Reef," he said.
Bleaching is a stress response by overheated corals during heat waves, where they lose their colour and many struggle to survive. Eighty percent of the World Heritage-listed wonder has been bleached severely at least once since 2016, the study by James Cook University in Australia's Queensland state found.
"Even the most remote, most pristine parts of the Great Barrier Reef have now bleached severely at least once," Hughes said.
The study found the corals adapted to have a higher heat threshold if they had survived a previous bleaching event, but the gap between bleaching events has shrunk, giving the reefs less time to recover between each episode.
Australia, which last week said it would not back a pledge led by the United States and the European Union to cut methane emissions, needs to do more to cut greenhouse gas emissions, Hughes said.
"The government is still issuing permits for new coal mines and for new methane gas deals and it's simply irresponsible in terms of Australia's responsibilities to the Great Barrier Reef," he said.
The Great Barrier Reef is comprised of more than 3,000 individual reefs stretching for 2,300km (1,429 miles). The ecosystem supports 65,000 jobs in reef tourism. Globally, hundreds of millions of people depend on the survival of coral reefs for their livelihoods and food security.
"If we go to 3, 4 degrees of global average warming which is tragically the trajectory we are currently on, then there won't be much left of the Great Barrier Reef or any other coral reefs throughout the tropics," Hughes told Reuters.
Reuters
Fri Nov 05 2021
An Acropora coral colony grows on the Great Barrier Reef off the coast of Cairns, Australia. - REUTERS
Pekebun boleh kemuka tuntutan akibat serangan haiwan liar
Pekebun yang mengalami kerugian hasil tanaman akibat ancaman haiwan liar boleh mengemukakan tuntutan pampasan terhadap kerosakan yang berlaku.
AWANI Ringkas: GISB Holdings | Kes tembakan di Song | PR1MA
Ikuti rangkuman berita utama yang menjadi tumpuan sepanjang hari di Astro AWANI menerusi AWANI Ringkas.
Lelaki rugi RM224,000 terperdaya skim pelaburan tidak wujud
Seorang lelaki warga tempatan berputih mata apabila kerugian RM224,000 setelah terperdaya dengan skim pelaburan tidak wujud yang diiklankan menerusi aplikasi WhastApp.
#AWANIRingkas 5 Oktober 2024 | 9 PM
Berikut merupakan rangkuman berita setakat 9 malam, 5 Oktober 2024
1️⃣ Siasatan membabitkan 10 peruntukan undang-undang
2️⃣ KDN sahkan seorang anggota polis terlibat
3️⃣ Projek sakit dijangka siap menjelang hujung 2024
#awaniringkas
1️⃣ Siasatan membabitkan 10 peruntukan undang-undang
2️⃣ KDN sahkan seorang anggota polis terlibat
3️⃣ Projek sakit dijangka siap menjelang hujung 2024
#awaniringkas
Serangan gajah: Perhilitan terus pantau Kampung Basung
Perhilitan Terengganu akan meneruskan pemantauan di Kampung Basung di Kuala Berang bagi mengesan gajah liar yang menyebabkan kematian warga emas hari ini.
Ekonomi penjagaan berpotensi hasil pendapatan baharu untuk negeri - Saarani
Kerajaan Perak melihat potensi ekonomi penjagaan sebagai satu daripada pendapatan baharu yang berdaya maju untuk negeri itu, kata Menteri Besar Datuk Seri Saarani Mohamad.
Polis tahan pegawai tentera kerana cabul kakitangan bawahan
Seorang pegawai tentera ditahan kerana disyaki mencabul kakitangan bawahannya sebanyak beberapa kali di sebuah premis kerajaan di Kok Lanas, Kota Bharu.
ATM lakukan siasatan penuh insiden di Wisma Transit
Angkatan Tentera Malaysia (ATM) melakukan siasatan penuh berkenaan insiden kekecohan yang berlaku di Wisma Transit, Kuala Lumpur membabitkan warga Palestin baru-baru ini.
JKNK akan dapatkan bantuan negeri lain jika berlaku banjir luar jangka
Jabatan Kesihatan Negeri Kelantan (JKNK) akan mendapatkan bantuan khidmat petugas Kementerian Kesihatan (KKM) dari negeri lain sekiranya mengalami banjir luar jangka tahun ini.
PR1MA: Projek sakit dijangka siap menjelang hujung tahun ini
Kementerian Perumahan dan Kerajaan Tempatan (KPKT) memberi jaminan projek Perumahan Rakyat 1Malaysia (PR1MA) yang dikategorikan sebagai ‘projek sakit’ atau bermasalah di seluruh negara akan disiapkan menjelang hujung tahun ini.
Adakah sampai waktu, kita ucap selamat tinggal pada terumbu karang Great Barrier Reef?
Agensi pemantau meletakkan status destinasi yang dahulunya antara keajaiban dunia itu ke paras paling buruk.
Dua warga emas maut nahas helikopter di Great Barrier Reef
Lelaki berusia 79 tahun dan seorang wanita 65 tahun itu terkorban dalam nahas berdekatan platform terapung di lokasi tarikan popular, Airlie Beach.