Sunday, March 12, 2023

Climate-resilient coral species offer hope for the world’s reefs

The purveyors of the Global Warming hoax and Climate Change religion rarely mention or even conceal that nature is much more resilient and adoptive and can cope with changing climate!

Here is another example! The research article below strongly reminds of pseudoscience!

"Two of the world’s most ubiquitous species of reef-building corals seem surprisingly able to survive and even cope well with climate change, according to a new study—at least so long as global warming is kept below 2 degrees Celsius (3.6 degrees Fahrenheit), the target set by the Paris Agreement. [What a nonsense!!!]"

From the abstract:
"Climate change poses a major threat [???] to coral reefs. We conducted an outdoor 22-month experiment to investigate if coral could not just survive, but also physiologically cope, with chronic ocean warming and acidification conditions expected later this century under the Paris Climate Agreement. [???] We recorded survivorship and measured eleven phenotypic traits to evaluate the holobiont responses of Hawaiian coral: color, Symbiodiniaceae density, calcification, photosynthesis, respiration, total organic carbon flux, carbon budget, biomass, lipids, protein, and maximum Artemia capture rate. Survivorship was lowest in Montipora capitata and only some survivors were able to meet metabolic demand and physiologically cope with future ocean conditions. Most M. capitata survivors bleached through loss of chlorophyll pigments and simultaneously experienced increased respiration rates and negative carbon budgets due to a 236% increase in total organic carbon losses under combined future ocean conditions. Porites compressa and Porites lobata had the highest survivorship and coped well under future ocean conditions with positive calcification and increased biomass, maintenance of lipids, and the capacity to exceed their metabolic demand through photosynthesis and heterotrophy. Thus, our findings show that significant biological diversity within resilient corals like Porites, and some genotypes of sensitive species, will persist this century provided atmospheric carbon dioxide levels are controlled. [???] Since Porites corals are ubiquitous throughout the world’s oceans and often major reef builders, the persistence of this resilient genus provides hope for future reef ecosystem function globally."

Climate-resilient coral species offer hope for the world’s reefs A new study found two common reef-builders can cope with 2ºC of global warming.


Figure 1
From: Physiological acclimatization in Hawaiian corals following a 22-month shift in baseline seawater temperature and pH


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