{"id":2136,"date":"2020-02-08T20:55:37","date_gmt":"2020-02-08T09:55:37","guid":{"rendered":"http:\/\/www.wenfo.org\/aer\/?page_id=2136"},"modified":"2025-03-26T13:53:26","modified_gmt":"2025-03-26T02:53:26","slug":"oceans","status":"publish","type":"page","link":"https:\/\/www.wenfo.org\/aer\/oceans\/","title":{"rendered":"Oceans"},"content":{"rendered":"\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"ocean-icon-22\"\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Global sea level rose slower than in the previous year. Sea surface temperatures
globally and Australia broke new records. The Great Barrier Reef experienced the fifth bleaching event since 2016.<\/h3>

\u00a0<\/p>

\"\"
Australian region average sea surface temperature expressed as the difference from 1961-1990 average values (BoM \/ NOAA)<\/figcaption><\/figure>

Oceans absorb 93% of excess heat from climate\u00a0<\/span>change. Global ocean heat content increased by 3.6%\u00a0<\/span>compared to the previous year, in line with a steady\u00a0<\/span>increase in ocean heat over the last three decades.\u00a0<\/span>The global mean sea level at the end of 2024 was 1.6\u00a0<\/span>mm higher than at the end of the previous year, when\u00a0<\/span>there was a rapid increase. Sea level has increased by\u00a0<\/span>88 mm since 2000 and 108 mm since 1993.<\/span><\/p>

Mean sea surface temperature in 2024 was the\u00a0<\/span>highest on record, both globally and around Australia.\u00a0<\/span>Ocean temperature was 0.79 \u00b0C higher than the\u00a0<\/span>1961\u20131990 average globally, and 0.89 \u00b0C higher in the\u00a0<\/span>Australian region. Ocean warming is in line with an\u00a0<\/span>unambiguous and steady increase in temperatures\u00a0<\/span>since around 1970.\u00a0<\/span>The Great Barrier Reef (GBR) experienced above-<\/span>average sea temperatures. After being hit by tropical\u00a0<\/span>cyclone Jasper in December 2023, the Central GBR\u00a0<\/span>was affected again by cyclone Kirrily in January 2024.\u00a0<\/span>Temperatures peaked in March, triggering the fifth\u00a0<\/span>mass coral bleaching event since 2016. Crown-of-<\/span>thorns starfish outbreaks persisted on some Southern\u00a0<\/span>GBR reefs. Although hard coral cover increased\u00a0<\/span>across the reef, regional levels remain similar to those\u00a0<\/span>in 2022 and 2023, with most surveys conducted\u00a0<\/span>before the full impact of bleaching and cyclone\u00a0<\/span>damage was clear.<\/span><\/p>

In December 2024, a marine heatwave reached\u00a0<\/span>Ningaloo Reef in Western Australia and started a\u00a0<\/span>coral bleaching event there<\/span><\/p>

\"\"
Mean sea level change relative to average 2000 level.<\/figcaption><\/figure>

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Global sea level rose slower than in the previous year. Sea surface temperaturesglobally and Australia broke new records. The Great Barrier Reef experienced the fifth bleaching event since 2016. \u00a0 Oceans absorb 93% of excess heat from climate\u00a0change. Global ocean heat content increased by 3.6%\u00a0compared to the previous year, in line with a steady\u00a0increase in<\/p>\n

Read More<\/a><\/div>\n","protected":false},"author":1,"featured_media":3133,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/PbFXqv-ys","_links":{"self":[{"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/pages\/2136"}],"collection":[{"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/comments?post=2136"}],"version-history":[{"count":68,"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/pages\/2136\/revisions"}],"predecessor-version":[{"id":3816,"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/pages\/2136\/revisions\/3816"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/media\/3133"}],"wp:attachment":[{"href":"https:\/\/www.wenfo.org\/aer\/wp-json\/wp\/v2\/media?parent=2136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}