RT @anordonez1: This is a throwback to the start of the #IPBES assessment on #InvasiveAlienSpecies currently being negotiated at #IPBES10. We have a small group here in #Bonn, but the great #report we have and #SPM we are negotiating was only possible thanks to all of you!!
ipbes
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ipbes
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
Climate Change Science on Telegram by GRT: World Meteorological Organization / NASA / IPCC / ONU / OOH / UN United Nations etc.
Scientists assess the impacts of a warming ocean With global average sea surface temperatures at record highs, ocean scientists associated with the WMO co-sponsored World Climate Research Programme have made a collective assessment of recent global trends…
arine heatwaves last?
Long-range seasonal forecasts and experimental marine heatwave forecasts predict continuing widespread warming over the coming months. Regionally, the latter forecasts indicate that marine heatwaves in the tropical Atlantic have a 50-80% chance of persisting into boreal winter 2023, although confidence in these forecasts generally decreases with increasing lead time. Additionally, models predict an elevated risk of marine heatwave conditions along the US west coast in boreal spring 2024 as the current El Niño continues to strengthen, since events usually peak in austral summer. See the full report for a breakdown of additional regions.
Impacts
Each year, marine heatwaves impact marine ecosystems around the globe, resulting in billions of US dollars in damages to marine ecosystems and to industries such as fisheries or tourism. During summer, marine heatwaves cause heat stress on a large variety of marine species including foundation species like seagrass, kelp and corals, with El Niño marine heatwave conditions particularly impactful on these species globally. For example, coral reefs off the Florida Keys have experienced an unprecedented level of coral bleaching this year. Aside from ecosystems, ocean heat is an important fuel source for developing tropical cyclones. Marine heatwaves in the tropical Indian Ocean contribute to rapidly intensifying cyclones and fluctuations in the monsoon rainfall. Extreme warming in the tropical Atlantic could contribute to stronger storms, although the influence of El Niño on upper-level winds may counteract the effect of the warm surface temperatures.
Due to ongoing global warming in response to unabated greenhouse gas emissions, instances of extreme ocean warming are projected to further increase in frequency, duration, and intensity. If dramatic mitigation and adaptation efforts do not occur, then each increment of future warming may lead to severe impacts on biodiversity, structure and function of marine ecosystems.
This assessment was made by the Marine Heatwaves in the Global Ocean Research Focus of the Climate and Ocean Variability, Predictability and Change (CLIVAR) Core Project of the World Climate Research Programme. The goal of the Research Focus is to achieve a better understanding of marine heat waves globally, including detection, surface and subsurface characteristics, mechanisms, connection with climate change and biogeochemical extremes, in order to increase preparedness and promote efficient adaptation planning, while contributing to the training of the next generation of scientists and providing input to observational programs.
Contact: Prof. Regina Rodrigues, [email protected]
Language
English
Featured Media
WCRP: ocean scientists assess marine heatwaves
Type of news
News
Publish Date
Tuesday, September 5, 2023 - 17:30
Tags
Oceans
Climate change
Editorial Section
CPA
Contact
CNullis
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
Long-range seasonal forecasts and experimental marine heatwave forecasts predict continuing widespread warming over the coming months. Regionally, the latter forecasts indicate that marine heatwaves in the tropical Atlantic have a 50-80% chance of persisting into boreal winter 2023, although confidence in these forecasts generally decreases with increasing lead time. Additionally, models predict an elevated risk of marine heatwave conditions along the US west coast in boreal spring 2024 as the current El Niño continues to strengthen, since events usually peak in austral summer. See the full report for a breakdown of additional regions.
Impacts
Each year, marine heatwaves impact marine ecosystems around the globe, resulting in billions of US dollars in damages to marine ecosystems and to industries such as fisheries or tourism. During summer, marine heatwaves cause heat stress on a large variety of marine species including foundation species like seagrass, kelp and corals, with El Niño marine heatwave conditions particularly impactful on these species globally. For example, coral reefs off the Florida Keys have experienced an unprecedented level of coral bleaching this year. Aside from ecosystems, ocean heat is an important fuel source for developing tropical cyclones. Marine heatwaves in the tropical Indian Ocean contribute to rapidly intensifying cyclones and fluctuations in the monsoon rainfall. Extreme warming in the tropical Atlantic could contribute to stronger storms, although the influence of El Niño on upper-level winds may counteract the effect of the warm surface temperatures.
Due to ongoing global warming in response to unabated greenhouse gas emissions, instances of extreme ocean warming are projected to further increase in frequency, duration, and intensity. If dramatic mitigation and adaptation efforts do not occur, then each increment of future warming may lead to severe impacts on biodiversity, structure and function of marine ecosystems.
This assessment was made by the Marine Heatwaves in the Global Ocean Research Focus of the Climate and Ocean Variability, Predictability and Change (CLIVAR) Core Project of the World Climate Research Programme. The goal of the Research Focus is to achieve a better understanding of marine heat waves globally, including detection, surface and subsurface characteristics, mechanisms, connection with climate change and biogeochemical extremes, in order to increase preparedness and promote efficient adaptation planning, while contributing to the training of the next generation of scientists and providing input to observational programs.
Contact: Prof. Regina Rodrigues, [email protected]
Language
English
Featured Media
WCRP: ocean scientists assess marine heatwaves
Type of news
News
Publish Date
Tuesday, September 5, 2023 - 17:30
Tags
Oceans
Climate change
Editorial Section
CPA
Contact
CNullis
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
RT @USAIDEnviro: New @IPBES #report finds invasive alien species are one of the top 5 drivers of biodiversity loss and pose a global threat to ecosystems, economies, food security, and human health.
Learn about invasive species and tools to help govts manage them: ipbes.net/IASmediarelease
ipbes
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
Learn about invasive species and tools to help govts manage them: ipbes.net/IASmediarelease
ipbes
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
RT @UNEP_FI: Our new report in collaboration with @UNEP-WCMC reviewed 7 #nature-related assessment and #disclosure approaches, and summarized their key differences, areas of applications and trends. Download the #report now: ow.ly/nbR950QuN4m
UNEP-WCMC
Climate Change Science on Telegram by @ClimateChangeScience
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UNEP-WCMC
Climate Change Science on Telegram by @ClimateChangeScience
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RT @GYBN_CBD: We’re excited to reshare a #report showcasing #youth-led initiatives in Africa, recognizing the efforts of #African chapters driving the #implementation of the Convention on Biological #Diversity’s K-M Global #Biodiversity Framework 🌍.
Scan the QR code to read the full report https://t.co/494Zm3xIP6
UN Biodiversity
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme
Scan the QR code to read the full report https://t.co/494Zm3xIP6
UN Biodiversity
Climate Change Science on Telegram by @ClimateChangeScience
A @grttme project - Other backups: @Hallotme