Coral Bleaching- Normal and Natural Variation... Not due to AGW

Discussion in 'Environment' started by Billy_Bob, Aug 18, 2018.

  1. Billy_Bob
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    Billy_Bob Platinum Member

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    Remember when they told us coral bleaching was a sure result of recent man-made global warming? Never mind.

    Reconstructing Four Centuries of Temperature-Induced Coral Bleaching on the Great Barrier Reef


    Well....

    My oh my... This is a natural and cyclical event caused by Super El Niño events and has no relation or correlation to AGW...
     
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  2. Kosh
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    Kosh Quick Look Over There! Supporting Member

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    Most of these claims are usually debunked at some point.
     
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  3. Billy_Bob
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    Billy_Bob Platinum Member

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  4. Kosh
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    Kosh Quick Look Over There! Supporting Member

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    [​IMG]
     
  5. S.J.
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    S.J. Platinum Member

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    The left has been busy busy busy over the decades with all of their hoaxes. And all of them are efforts to arrive at the same goal, which is to control our movements, our behavior, and our votes.
     
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  6. Billy_Bob
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    Billy_Bob Platinum Member

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    Wow..

    I expected our resident self proclaimed oceanographer to jump in and scream, jump up and down, call names, etc for posting up this peer-reviewed work....

    Crickets...........
     
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  7. mamooth
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    mamooth Gold Member

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    From the paper:
    ---
    but reconstructed increases in bleaching frequency and prevalence, may suggest coral populations are reaching an upper bleaching threshold, a “tipping point” beyond which coral survival is uncertain.
    ---

    So, the paper says the current bleaching has the corals reaching a point of no return. That is, it's unprecedented.

    I wonder why WUWT lied about that? Oh wait, I don't wonder. Lying is what they do.

    And I don't have to wonder why the usual suspects here just repeated the lies, instead of reading the paper themselves. Repeating propaganda is all they're capable of.
     
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  8. Billy_Bob
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    Billy_Bob Platinum Member

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    You obviously didn't read the paper I read... It clearly exposed Natural variation as the primary driver and that we are no where near a catastrophic collapse of anything.... LOL... Your projecting your views again without facts to support your conjecture.. You've been reading SkepticalShitScience again..
     
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  9. Old Rocks
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    Old Rocks Diamond Member

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    Reconstructing Four Centuries of Temperature-Induced Coral Bleaching on the Great Barrier Reef
    [​IMG]Nicholas A. Kamenos1* and [​IMG]Sebastian J. Hennige2
    • 1School of Geographical and Earth Sciences, University of Glasgow, Glasgow, United Kingdom
    • 2School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom
    Mass coral bleaching events during the last 20 years have caused major concern over the future of coral reefs worldwide. Despite damage to key ecosystem engineers, little is known about bleaching frequency prior to 1979 when regular modern systematic scientific observations began on the Great Barrier Reef (GBR). To understand the longer-term relevance of current bleaching trajectories, the likelihood of future coral acclimatization and adaptation, and thus persistence of corals, records, and drivers of natural pre-industrial bleaching frequency and prevalence are needed. Here, we use linear extensions from 44 overlapping GBR coral cores to extend the observational bleaching record by reconstructing temperature-induced bleaching patterns over 381 years spanning 1620–2001. Porites spp. corals exhibited variable bleaching patterns with bleaching frequency (number of bleaching years per decade) increasing (1620–1753), decreasing (1754–1820), and increasing (1821–2001) again. Bleaching prevalence (the proportion of cores exhibiting bleaching) fell (1670–1774) before increasing by 10% since the late 1790s concurrent with positive temperature anomalies, placing recently observed increases in GBR coral bleaching into a wider context. Spatial inconsistency along with historically diverging patterns of bleaching frequency and prevalence provide queries over the capacity for holobiont (the coral host, the symbiotic microalgae and associated microorganisms) acclimatization and adaptation via bleaching, but reconstructed increases in bleaching frequency and prevalence, may suggest coral populations are reaching an upper bleaching threshold, a “tipping point” beyond which coral survival is uncertain.

    Reconstructing Four Centuries of Temperature-Induced Coral Bleaching on the Great Barrier Reef

    Note the last sentence. "May suggest coral populations are reaching an upper threshold, a "tipping point" beyond which coral survival is uncertain. That says exactly opposite to what the WUWT article is saying. Yes, there have been bleaching events in the past. And how long did it take the coral to recover? There were not 7+ billion people on this planet then, 2 billion of which are dependent on the ocean for their protean. And the corals are the richest habitat in the ocean.
     
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  10. Old Rocks
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    Old Rocks Diamond Member

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    More shit from you ample ass. Burger flipper, WUWT is not a credible source. And their interpretation is 180 degrees off. Just as yours is.
     

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