AN ASSAULT ON SCIENCE

We hypothesize that these centennial-scale climate anomalies were at least partially driven by temperature changes in the Northern Hemisphere and in particular over the North Atlantic, leading to a latitudinal displacement of the ITCZ and a change in monsoon intensity (amount of rainfall upstream over the Amazon Basin). This interpretation is supported by several independent records from different proxy archives and modeling studies. Although ENSO is the main forcing for δ18O variability over tropical South America on interannual time scales, our results suggest that its influence may be significantly modulated by North Atlantic climate variability on longer time scales.

CONCLUSIONS
The record of Laguna Aculeo (33
◦
50
S) provides detailed evidence for an arid early to mid-Holocene, a precipitation increase around 5700 cal yr B.P., and the onset of modern humid conditions around 3200 cal yr B.P. in central Chile (32–35◦S). During the early and mid-Holocene, the southeast Pacific high-pressure cell was most probably blocking the Westerly frontal system and deflecting it farther south. During the late Holocene, which
appears to be the most humid Holocene period, the Westerlies
gained strength, and El Nino activity may have increased. In gen-
eral, the rise in moisture availability in central Chile parallels the
increase in the insolation seasonality during the Holocene. Over-
all, more high-resolution Holocene records in central Chile are
needed for a better understanding of climate linkages in South
America

Heh, Parry, you don't hear so good, do ya?

Find another chump to play chump games with, eh?

The last decades of the past millennium are characterized again by warm temperatures that seem to be unprecedented in the context of the last ∼1600 years.

It's funny when your source referenced the Kelleher paper they left this part of the abstract out of their paper

The most striking features in the reconstruction are the warm temperatures from ∼1050 to ∼1300 AD compared to the preceding and following centuries, the persistent cooler temperatures from ∼1400 to ∼1800 AD, and the subsequent rise to warmer temperatures which eventually seem to exceed in the last decades of the 20th century the range of past variation.

And in regard to this last observation, the graph of their data suggests that the peak warmth of the Current Warm Period may, in this particular case, actually have been ~0.27°C greater than the peak warmth of the Medieval Warm Period.

Relatively warm temperatures during the first centuries of the past millennium and subsequent cold conditions from the 15th to the 18th century suggest that the MWP and the LIA are not confined to high northern latitudes and also have a tropical signature.

this is an inquiry into an assault on science

that's all you've done since about your second or third post in this thread

I've been listening to a program on the radio about an assault on science. (Assault is my term, not what was said in the program.) I happen to agree that there is an anti-science attitude in society. I am interested to know what people here think of the idea.

That's not on topic at all.

I am interested to know what people here think of the idea.

on that subject

Read the OP.

Conceptually, no thinking person could hold a candle to that conception.