[Coral-List] Temperature from coral bands, Eugene Shinn <eugeneshinn2 at gmail.com>

[Douglas Fenner]

The popular article has a link in it to the original paper which is at
https://www.science.org/doi/10.1126/sciadv.ado5107

Coral Sr/Ca reconstruction from Fiji extending to ~1370 CE reveals insights
into the Interdecadal Pacific Oscillation.

Also, there is a link to an article that is relevant to your statement
about whether warming was naturally caused or caused by humans.

Unambiguous warming in the western tropical Pacific primarily caused by
anthropogenic forcing,

That was published in the International Journal of Climatology

You can access it at
https://www.researchgate.net/publication/279181903_Unambiguous_warming_in_the_western_tropical_Pacific_primarily_caused_by_anthropogenic_forcing

It also refers to a study based on drilling corals in Australia showing
recent marine heat waves on the Great Barrier Reef are the hottest in 400
years.

https://www.nature.com/articles/s41586-024-07672-x

I presume you are challenging, once again, the conclusion based on
mountains of data, that humans are "largely" responsible for the rapid
warming of the earth's surface in the last few decades, unprecedented in
thousands of years, illustrated in the "hockey stick" graph which angers
climate change deniers so much.

Have you published articles arguing your viewpoint in any peer-reviewed
climatology journals??  These authors, and a vast number of others, have.

You say there is no evidence to support their claim that the earlier period
was natural and the recent one human-caused, you say "it is not science."

Just not true, there is a mountain of evidence to support the recent
warming as largely human-caused.  And it is the best available science.

We've had these arguments on coral-list over and over, though not
recently.  Some people are not convinced by piles of evidence.

Cheers, Doug

On Mon, Aug 26, 2024 at 10:45 AM Eugene Shinn via Coral-List <
coral-list at lists.coralreefs.org> wrote:

> Dear listers. I thank Bill Precht, for sending this to some of us old
> timers.
>
> https://theconversation.com/a-600-year-old-coral-shows-us-how-the-pacific-ocean-has-changed-since-1370-236740
>
>       I consider this an example of poor science.  It really caught my eye
> because the authors cored a large coral to do sclerochronology similar to
> what Harold Hudson and I began doing  in the 1970s. We did it to determine
> age, past weather conditions, and years of abnormal growth based on growth
> band variations in thickness and density. Thickness changes in growth bands
> were common but we had no way to correlate these changes with climate
> change. In the article I have attached the authors claim strontium/calcium
> ratios indicate warmer conditions between 1370 and 1553 and call it NATURAI
> warming. Similar more recent changes in the same coral (cored in 1998) they
> claim is due to anthropogenic caused warming. Where is the evidence the
> first one is natural and the more recent one is not. There is none. This is
> not science. Gene
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