By Robert W. Endlich
Las Cruces is home to New Mexico’s Land Grant school, New Mexico State University, ostensibly home of The Educated, but some of the climate pronouncements by climate alarmists here have proven to be terribly wrong.
Las Cruces, situated in southern New Mexico, is only an hour’s drive from El Paso, Texas, and is located both in the Mountain West and in the Chihuahuan Desert. As such, it lies in the area where cold season precipitation patterns are governed by the related weather events El Nino Southern Oscillation and its 60-year-long big cousin, the Pacific Decadal Oscillation.
These readily known facts seemingly mean little to the alarmists who proclaim the increasing amount of carbon dioxide is leading to more droughts here. Mother Nature has played cruel tricks on these alarmists the past few years.
Particularly Poor Prognostications
On 16 August 2012, our USA Today affiliate, the Las Cruces Sun-News, carried the column: “Heat waves, droughts, and global warming: the connection,” by PhDs Donald Neidig, Thomas Schmugge and Mark Boslaugh who used the increasing number of high to low temperatures from the 1950s to 2012 as their figure of merit. This cherry-picked period conveniently missed the most significant weather event of the 20th century, the Dust Bowl years. This decade, the 1930s, when atmospheric <CO2> was 310 Parts Per Million or lower, had the most extreme maximum temperatures in US history.
19 June 2017 Las Cruces City Council Meeting: Council considered a motion rebuking President Trump’s withdrawal from the Paris Climate Accord. I testified that Henry’s Law from over 200 years ago explains the relationship between CO2 and temperature, and that TEMPERATURE controls the release of CO2 from the oceans, not the reverse. I showed graphics displaying Henry’s Law effects and thousand-year Bond Cycles which explain much of climate change the last 3500, even 10,000 years, also discussed on our web site for the Cruces Atmospheric Sciences Forum.
That Council Meeting had over a dozen individuals who testified that increasing CO2 caused the drought extant since year 2000; among those, New Mexico State Senator Jeff Steinborn and New Mexico State Representative Nathan Small. I chatted with them after the meeting, explaining 100 years of data showed droughts decreasing as <CO2> was increasing. I emailed them showing them my data sources and asked for their data sources; neither replied.
The Senator and The University
Perhaps New Mexico’s most zealous Climate Alarmist is US Senator Tom Udall; his office is responsible for NMSU sponsoring a “climate education” series of lectures commencing in Spring 2018 and ongoing. I have attended several of these lectures and, far from being educational or based in sound science, the ones I’ve attended have been long on these themes: “CO2 is causing hotter and drier conditions,” “John Tyndall and Svante Arrhenius predicted climate doom in the 1800s,” “Climate Models are a value-added tool for climate forecasting and policy determination.”
The program is named NMSUCCESS, New Mexico State University Climate Change Education Seminar Series; some of the lecture videos are on line at https://nmsuccess1.wordpress.com/talk-videos/. I recommend you avail yourselves of this opportunity to see what is being presented and to validate for yourselves whether my criticisms are correct.
The NMSU presentations used climate change diagnostics shorter than the 60-year period characteristic of important climate cycles. Both the Atlantic Multidecadal Oscillation (North American Temperatures) and the Pacific Decadal Oscillation (western North American Precipitation) have 60-year periodicities. None of the lectures mentioned the term “climate cycles,” or the ~1000-year Bond Cycles, which show up prominently in ice core and other proxy temperature time series for the Holocene, the present interglacial.
I never saw these words and acronyms mentioned in NMSU’s “Climate Education” series: Holocene, Glacial period, Interglacial period, millennial climate changes, Roman Warm Period, Little Ice Age, AMO, PDO, Modern Warm Period.
Education? More like propaganda.
When I asked a direct question about the millennial “Bond Cycles,” the “expert” presenter either begged off, changed the subject, or answered by not answering.
Data’s Different Story
Observations in the Mountain West have repeatedly demonstrated the wild naturally-occurring climate fluctuations within the recent past which are brought about by rapid changes from El Nino to La Nina conditions as ocean temperatures change offshore western North America. In 1954, the droughts were so severe that New Mexico’s largest water body, Elephant Butte Reservoir, went down to 0.1 percent of capacity; that event was measured on 6 August 1954.
According to data analyzed by the University of Arizona Tree Ring Laboratory, New Mexico had the wettest period in the past 2000 years in the late 20th Century,
The late 20th Century pluvial corresponds with PDO-warm (and wet). Prominent weather events during that period proved historic, examples include:
30 March 1982: Space Shuttle Columbia lands at Northrup Strip, White Sands Missile Range. The primary landing site at Edwards AFB was flooded because of the PDO-warm pluvial of the 1980s.
May 1983: Interstate 15 north of Salt Lake City flooded because Great Salt Lake overflowed from heavy rain and snow runoff that winter and spring.
June 1983: Emergency construction was undertaken at Glen Canyon Dam’s spillway gates. The El Nino at the peak of the PDO-warm cycle produced such prodigious amounts of snow and rain in the Colorado River basin that the resulting high water nearly overtopped the spillways.
These events are reflected in the long-term precipitation records presented below.
There are over a century’s worth of rainfall records for the area available from Jornada Range, a multi-agency research station about 20 miles north-northeast of Las Cruces. The data show that as the concentration of CO2 has increased in the past century, rainfall has been increasing!
When the PDO returned to its cold phase about 2000, the return of more frequent La Nina droughts started to bring out these cries:
“It’s all our fault! More CO2 brings more drought!”
It seems as if the alarmists are both unaware of the climate history of the region and are unable to do a literature search, even though this is now trivial, using an internet connection and internet search.
The Garfin Files
The 25 April 2018 presentation by University of Arizona climate expert Gregg Garfin, Coordinating Lead Author for the Southwest Chapter of the National Climate Assessment, carried the title, “A look ahead for the Southwest, Hotter and More Arid.” The title is emblematic of the alarmist doctrine.
Garfin has been the subject of several posts, including his effective use of color for propaganda purposes, a 4-part analysis of his lecture, and a presentation which contains numerous newspaper references to the global climate anomaly of the Dust Bowl Years
It’s amazing to me that during his lecture, Garfin presented a “peer-reviewed” paper which said increased forest fires in the west were from “climate change during the period 1984-2015.” There was a minimum of forest fire activity in 1983 and 1984 because of the excessive rain and snowfall at the peak of this pluvial. There was a slight increase in fire activity in the years after 1983, but by choosing a start date of 1984, the “peer-reviewed article” was merely cherry picking a peak in the pluvial and minimum of fire activity as the start date for their period. That this abuse occurs in the “peer reviewed literature” is a failure of the peer-review process and a disgrace to Science.
My 16 June 2018 presentation uses Garfin’s own graphics to analyze and criticize that lecture.
The Hayhoe Show
Another alarmist presentation was by Texas Tech’s Katharine Hayhoe; an introduction to the errors in her 6 Feb 2019 presentation is on our web site. Her presentations deliberately mislead the young, the innocent, and the ignorant by proclaiming that present temperatures are hottest in the past 6,000 years, all caused by our use of fossil fuels.
I presented my analysis of Hayhoe at our 16 Feb 2019 meeting of the Cruces Atmospheric Sciences Forum. Besides ignoring the inconvenient thousand-year cycles, another of her deliberate distortions is that computer forecasts are a worthwhile, valid, and undisputable resource to determine future conditions. Examples of her forecasts from her presentation at NMSU are shown below. The Hayhoe graphics are screen captures from the above link; each gives the time of the segment.
That adding CO2 will cause 5F or 10F warming without causing a dramatic increase in rainfall in the southwest USA simply cannot occur. Such surface warming increases during the North American Monsoon would cause prodigious increases in rainfall, turning desert to jungle, as now seen in southern Mexico. Hayhoe makes not the slightest hint that her computer-generated forecasts are well out of the mainstream of balloon-based or satellite-derived observations.
Those pesky Bond Cycles
Perhaps one of the most important pieces of evidence which punches a huge hole in Carbon Dioxide Climate Theory is the answer to the question pertaining to the increase in surface temperatures since the wide deployment of liquid-in-glass thermometers in the 1800s.
The question is, “Has this (warming) happened before?”
The answer involves the concept of proxies, in this case, a proxy for temperature. Proxies for temperature exist when we can find, for instance, deposits of materials from a temperature-dependent process which has existed in nature over long periods of time. One of the most useful proxies is the temperature dependence of the oxygen isotope ratio, the O16/O18 ratio, in water vapor. The vapor evaporated from warm ocean water, became cloud liquid water, was transported poleward, changed phase to solid crystal, and fell as snow, repeatedly, over centuries, as has happened in the Greenland Ice Sheet.
Penn State University professor Richard Alley published on the Younger Dryas as viewed from Central Greenland in 2000. These data have subsequently been analyzed by Dr Don Easterbrook, and his work shows the temperature of the entire Holocene, the temperatures since the Wisconsin Ice Sheet melted away. Both ice core and tree ring proxies show the answer to the question posed above, “Has this happened before?” is ‘Yes, about thirteen times in the past 10,000 years, the Holocene.’
Dr Easterbrook’s plots distinctly show the Minoan, Roman and Medieval warm periods. The Minoan, Roman and Medieval warm periods occurred when CO2 was 280 Parts Per Million, yet these warm periods were warmer than the Modern Warm Period which now has ~415 PPM CO2.
A textbook example of the use of multiple proxies for determining temperature history of the Northern Hemisphere was done by Ljungqvist et al, subsequently analyzed and used in Roy Spencer’s blog:
Figure 9. Two thousand years of multi-proxy temperatures for the Northern Hemisphere analyzed by Ljungqvist, et al, with annotations by Dr Roy Spencer. The Roman, Medieval, and Modern warm periods are displayed with a ten-year time resolution. The minimum of temperature about 550 AD is sometimes called the Dark Ages because crops frequently failed and many babies perished. The depth of the Little Ice Age is about 1690 AD and is the coldest of the ~10,000 year-long Holocene.
The thousand-year periodicity of these cold and warm cycles was determined by analysis of deep-sea mud cores from the Atlantic published in SCIENCE in 1997 by Gerard Bond et al. The likely persistent Solar Influence as the cause of these climate changes was described by Bond in 2001 in SCIENCE; therefore, many of us refer to these naturally-occurring cycles as “Bond Cycles.”
Mother Nature has her say
This year, 2019, Mother Nature has played a cruel joke on these “Hotter and Drier” alarmist proclamations.
From the headlines:
USA Today, 9 March 2019: “Wetter than ever: Winter 2018-19 was USA’s soggiest in recorded history.”
Washington Post 9 May 2019:” The United States just had its wettest 12 months on record…” (now pay-walled)
Farmington Daily Times, 11 May 2019: “Mother’s Day weekend storm adds to New Mexico’s already impressive snowpack.”
Despite repeated forecasts of hotter, drier conditions for New Mexico and especially the southern part of the state, Mother Nature has shown that she’s in charge of the weather and climate. Not a single source cited here (nor the others in the “climate education” lectures) mentioned even the remotest possibility that the increasing rainfall trends shown by the University of Arizona Tree Ring Laboratory displayed in Figure 2, or the rain gage data for Jornada Range shown in Figure 4 might temper their ‘Climate Doom Through Drought’ prognostications.
On 10 June 2019, a final disturbance in the cool-season weather caused an extremely Wet Monday in the Chihuahuan Desert here. Rainfall was seemingly all day long and when the totals were analyzed, it was the tenth rainiest day in over a century of record-keeping. Excerpts from the Sun-News story follow below:
The ten rainiest days measured at New Mexico State University are prominent in the 11 Jun 2019 story in the Las Cruces Sun News, “Monday among the 10 Rainiest days in Las Cruces.” Each of the ten rainiest dates is listed. Seven of the ten rainiest days have occurred since 1950, the period when the Intergovernmental Panel on Climate Change says the adverse effects of increasing CO2 are dominant.
The data clearly suggest that more CO2 in the air does not reflect more drought here. The century-long increases in precipitation appear to reflect the beneficial effects as the cold and drought of the Little Ice Age recede into the past. History reveals that the Spanish Mission at Abo, near Mountainair, NM, was established in 1620, but had to be abandoned in the punishing Little Ice Age drought of the late 1600s.
The Story at “The Butte”
I mentioned Elephant Butte Reservoir was the largest body of water in New Mexico; its impounded waters are shared among Texas, New Mexico, and Mexico. Water is released from the reservoir beginning in the spring, to flow down the Rio Grande to water users. Below is a plot of the water levels in Elephant Butte Lake as of 11 July 2019.
Water levels were still rising from the spring melt as of 11 July 2019, an astounding turn-around from the previous year. Visitors to the Elephant Butte Web site may see the entire time history of “The Butte’s” capacity levels by clicking the Historical tab. The 11 July 2019 example is shown below.
And, in Conclusion…
Making weather and climate forecasts involves solving the equations of atmospheric motion. For over 200 years we have been able to write the equations down, but since they contain nonlinear terms, we can’t solve them, even with modern computers. Numerical Weather forecasts are significantly better than when I began as an operational forecaster in the 1960s. Today. possibilities of severe weather and arctic air outbreaks are now foreseen almost a week in advance. Nonetheless, there are time limits, and numerical forecasts eventually break down because of our inability to solve the nonlinear terms.
The Climate Prediction Center issued the Winter 2018-2019 Outlook on 18 October 2018 which featured warmer weather and drier for many areas of the northern CONUS, with only a small area from along the southern and middle Atlantic states wetter than average. I encourage you to visit the site. The twin realities, “Wetter than ever: Winter 2018-19 was USA’s soggiest in recorded history,” and the coldest on record as plotted here, point out that at present, climate forecasting, even a season ahead, is beyond the state of the art.
Why is this so?
Weather and climate have always changed in a chaotic manner. This is one reason why we write down observations and keep weather records of all kinds. This chaotic characteristic is so fascinating to us that it is commonly the lead item in the news. Mother Nature deals us these chaotic changes in weather and climate with no need to claim human or supernatural influence.
It is just the way things are, and in a career analyzing and forecasting the weather for operational missions in Asia (Thailand, Vietnam), Oceania (Guam), Europe (Germany, in the Cold War), and the USA (Montana, Arizona, New Mexico), I have perhaps a deeper appreciation than many of the limits of predictability of the future state of the atmosphere.
Not a single climate forecast I’ve examined here had the slightest hint of cold, wet winters to come nor the record-setting snowfall and rainfall which has deluged most of the country the past year. Those claiming to be experts in climate, citing CO2 as a driver and computer models as worthwhile tools, ignored at their peril the twin roles of climate cycles and the power of the chaotic natural weather fluctuations.