This is odd. WUWT for a change is welcoming a climate science paper published in Science, no less. After reading the comments I've figured out why. It's because the study finds something different to modeled paleoclimate. Deniers really dislike models of any kind. Well, actually the only models they don't like are climate models. And medium term weather models.
Shellfish tell the tale of ENSO
The paper describes research into ENSO using middens, which sounds like a novel way to explore past climate influences. Specifically, they were able to get monthly records of δ18O values in fossil Mesodesma donacium shells (a shellfish) on the coast of Peru. These mollusks have been eaten by fisher folk on the coast of Peru for more than 10,000 years. Imagine that! The shells are piled up in mounds up to 10 metres high. The very dry conditions meant that they were preserved very well.
What the international team of researchers found was that over the past 10,000 years, ENSO didn't behave as expected.
