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Geoengineering of the climate may be the only way to save coral reefs from mass bleaching, according to new research.
Coral reefs are considered one of the most vulnerable ecosystems to future climate change due to rising sea surface temperatures and ocean acidification, which is caused by higher atmospheric levels of carbon dioxide.
Mass coral bleaching, which can lead to coral mortality, is predicted to occur far more frequently over the coming decades, due to the stress exerted by higher seawater temperatures.
Scientists believe that, even under the most ambitious future CO2 reduction scenarios, widespread and severe coral bleaching and degradation will occur by the middle of this century.
The collaborative new research, which includes authors from the Carnegie Institution for Science, the University of Exeter, the Met Office Hadley Centre and the University of Queensland, suggest that a geoengineering technique called Solar Radiation Management (SRM) reduces the risk of global severe bleaching.
The SRM method involves injecting gas into the stratosphere, forming microscopic particles which reflect some of the sun’s energy and so help limit rising sea surface temperatures.
The study compared a hypothetical SRM geoengineering scenario to the most aggressive future CO2 reduction strategy considered by the Intergovernmental Panel on Climate Change (IPCC), and found that coral reefs fared much better under geoengineering despite increasing ocean acidification.
Read more: Climate engineering may save coral reefs, study shows
The Latest on: Coral bleaching
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The Latest on: Coral bleaching
- Coral reefs in Solomon Islands hit by bleachingon March 6, 2021 at 12:19 am
Scientists have identified a widespread coral bleaching event on shallow, inshore reefs that had been previously thought to be less reactive to climate stress, the Wildlife Conservation Society (WCS) ...
- House Natural Resources Committee Issues Testimony From U.S. Virgin Islands Department of Planning & Natural Resourceson March 6, 2021 at 12:05 am
The House Natural Resources Committee issued the following testimony by Jean-Pierre L. Oriol, commissioner of the U.S. Virgin Islands Department of Planning and Natural Resources, as part of a remote ...
- New approach for coral growthon March 5, 2021 at 2:00 am
Luckily two young marine scientists have taken up the cause and have created a pilot trial which would test the viability of different aquaculture methods of quickly growing coral ...
- Coral reefs bounce back from mass bleaching eventon March 3, 2021 at 6:25 am
Coral reefs off the Capricorn Coast have avoided widespread mortality and have bounced back from a 2020 bleaching event. These are the latest findings of the Australian Institute of Marine Science ...
- Southern reefs recover from bleachingon March 1, 2021 at 8:58 pm
Under the right conditions, corals can recover from bleaching events. This is the case for multiple reefs in the southern Great Barrier Reef, ...
- Climate Change Threatens the Western Indian Ocean's Rich Coral Reefson February 26, 2021 at 7:14 pm
A great deal of academic literature exists on the Western Pacific’s “Coral Triangle,” detailing coral species diversity and distribution as well as bleaching effects caused by warm waters and climate ...
- Climate Change to cause Bleaching Outbreaks around Florida’s southern coasts by 2030on February 24, 2021 at 6:21 pm
Florida's coral reefs could be hit by widespread coral bleaching events sooner than scientists previously thought.
- Microbiome boost may help corals resist bleachingon February 23, 2021 at 10:23 am
Providing corals with cocktails of natural probiotics could enhance their tolerance to stress and reduce mortality in coral bleaching events.
- Scientists organize to tackle crisis of coral bleachingon February 14, 2021 at 11:46 am
An international consortium of scientists has created the first-ever common framework for increasing comparability of research findings on coral bleaching. The common framework covers a broad range of ...
- Metabolomic signatures of coral bleaching historyon February 7, 2021 at 4:00 pm
Coral bleaching has a profound impact on the health and function of reef ecosystems, but the metabolomic effects of coral bleaching are largely uncharacterized. Here, untargeted metabolomics was ...
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