The ‘Little Ice Age’ hundreds of years ago is STILL cooling the bottom of Pacific, researchers find

The authors wrote:

“we turn to the deep-ocean temperature measurements from the HMS Challenger expedition that were obtained near the beginning of the instrumental era, 1872–1876 CE. There were 5010 temperature observations along the cruise track, including 4081 observations below the mixed layer and 760 observations from deeper than 2000 m (Fig. 2). Previous analysis (18) showed a 0.4°C warming between the 1870s and 2000s in the upper 500 m of the ocean, tapering off to values indistinguishable from zero at 1800 m depth. Challenger temperature trends were not assessed at deeper levels, however, over concerns regarding depth-dependent biases.

But then they wrote this further on in their Science manuscript:

“The bulk of the Challenger observations that indicate 20th-century cooling are found in the Pacific between 2000 and 4000 m depth.

Their Methods section in the Supplement has this on Challenger recordings;

HMS Challenger observations.
We correct for pressure-compression effects altering the mercury level in the max-min thermometers used in the Challenger expedition by applying a correction of -0.04◦C per kilometer
of depth (19), as diagnosed in pressure-tank experiments. With this adjustment, the amount of
Pacific cooling is diminished between the Challenger and WOCE eras.
There are other issues related to the depth of the observation. In abyssal locations with temperature inversions, the max-min thermometer will lead to a cold bias that may obscure trends
in temperature since the Challenger expedition. For this reason, 164 points are eliminated.
Another bias involves the fact that depth was recorded on the basis of length of line let out, and depth will be overestimated insomuch as the line is not exactly vertical.
Examination of reported bottom depths relative to modern estimates, however, suggests a systematic bias toward underestimating depth by about 4%. This bias is consistent with rope stretch. The Challenger expedition used one-inch diameter hemp rope that was loaded to as much as 35% of its breaking strength for deep soundings, and which is associated with a similar amount of stretch in modern hemp ropes (37). As our aim is to minimize the potential for spuriously detecting cooling, we do not adjust depths because doing so would involve comparing Challenger observations against deeper and generally colder recent observations. Also, Southern Ocean temperatures south of 45◦S are not examined because strong, pervasive currents are expected to cause greater departures from vertical in the line (18).

My take on this. The Pacific Ocean at depth is cooling. The immense bulk of this abyssal water reservoir is that of a giant storage buffer that indicates what is happening to Earth’s climate on time scales of millennia, and a data point set from over 100 years ago tells us it got colder since then. And it is likely still getting colder. The ever so slow onset of the next glaciation probably has started, but it is noisy at scales of a hundred years or so — the interglacial we have enjoyed for 10,000 years is closing… exit stage left very slowly as the proxy records of the past 800,000 years shows happens as interglacials fade away.
The current Climate Change alarmism is nothing but a scam on humanity in pursuit of a political power structure from a small group of elitists. A scam if followed that will leave modern society little prepared for the return to glaciation conditions of the NH.

+1
That one!