A Citizen’s Guide to Climate Change

The Competitive Enterprise Institute has just published A Citizen’s Guide to Climate Change authored by Marlo Lewis, Jr. The article is relatively short, just six pages with an additional four pages of references to the scientific literature.

The article begins: “Climate change is not a hoax, but as a political matter, it is a persistent pretext for expanding government control over the economy, redistributing wealth, and empowering unaccountable elites at the expense of voters and their elected representatives.”

The article concludes: “The perception of a ‘planetary emergency’ arises from the combination of overheated climate models, inflated emission scenarios, and relentless exaggeration by political interests claiming to speak for ‘the science.’ The very real costs of coercive de-carbonization outweigh the hypothetical benefits. The more “ambitious” the climate policy, the more likely it is to damage economic growth, consumer welfare, and our institutions of self-government.”

The article discusses:

Humans’ Role in Climate Change,

Improving State of the World,

Science—Models vs. Real World Data,

No Planetary Emergency,

National Climate Assessment’s Bogus Headline Grabber,

Perils of Climate Policy,

Official Climate Assessments Need a Reset.


We have more to fear from climate alarmism and its resulting policies than from climate change itself. Read the paper online here or download as a PDF file.

Related articles: 

A Review of the state of Climate Science

The Broken Greenhouse – Why CO2 is a minor player in global climate

Evidence that CO2 emissions do not intensify the greenhouse effect


Recent Tornadoes Are The Result of Cold Air Not Global Warming

Numerous strong tornadoes are wreaking havoc in Central and Southeastern U.S. this spring. Politicians and the media are blaming these storms on global warming. The real cause is that unusually persistent cold air masses are colliding with warm, moist Gulf air to produce wind shear which spawns tornadoes.

Meteorologist Dr. Roy Spencer (Principal Research Scientist at the University of Alabama and former Senior Scientist for Climate Studies at NASA’s Marshall Space Flight Center) opines: “To claim that global warming is causing more tornadoes is worse than speculative; it is directly opposite to the clear observational evidence.”

Dr. Spencer notes:

Very few thunderstorms produce tornadoes. In the hot and humid tropics, they are virtually unheard of. The reason why is that (unlike hurricanes) tornadoes require strong wind shear, which means wind speed increasing and changing direction with height in the lower atmosphere.

These conditions exist only when a cool air mass collides with a warm air mass. And the perfect conditions for this have existed this year as winter has refused to lose its grip on the western United States. So far for the month of May 2019, the average temperature across the U.S. is close to 2 degrees Fahrenheit below normal. (Source)

This year, the Northern Plains have been averaging 5-10 deg. F below normal due to cold air masses stretching from Michigan, through Colorado to California. It’s weather, not global warming. As Dr. Spencer notes, the number of strong to violent U.S. tornadoes has gone down from 60 in 1954 to 30 in 2018.

See also:

Evidence that CO2 emissions do not intensify the greenhouse effect

The Broken Greenhouse – Why CO2 is a minor player in global climate

An examination of the relationship between temperature and carbon dioxide

Grijalva’s Proposed Change to Mining Law Would Be Disastrous for America

Congressman Raul Grijalva is at it again with his proposed H.R. 2579 Hardrock Leasing and Reclamation Act of 2019 which would probably make future mining in America uneconomic. Among other things, the law would impose a 12.5% royalty on productions and eliminate valid mining claims after 20 years (read full text). The royalty is extremely punitive to an industry that already pays over 45 percent of its earnings to federal, state and local governments, in the form of taxes, fees, royalties and other assessments. Currently, the U.S. is 100% import-reliant for 18 minerals – 14 of which have been deemed “critical” by the departments of defense or interior.

The American Exploration & Mining Association (AEMA) notes that:

The sweeping changes in Rep. Grijalva’s legislation are unnecessary and a disaster in the making for the domestic mining industry and for America.

The fact is, hardrock mining is fundamentally different than oil, gas, and coal because it is much more difficult to find and develop hardrock mineral resources. This bill ignores these differences and seeks to force-fit royalty and leasing programs for coal, oil, and gas on hardrock mining. Without question, the Grijalva bill, if enacted, would substantially chill private-sector investment in exploring for and developing minerals on federal land and dramatically increase our already extensive reliance on foreign sources of minerals.

This bill poses a significant threat to our Nation’s economic security and to our defense, technology, manufacturing, infrastructure, and renewable energy sectors, all of which rely on minerals from mining. The country will suffer as high paying family-wage jobs are exported, and our rural communities will experience disproportionately severe economic hardships.

Geologist Ned Mamula (adjunct scholar in Geosciences at the Center for the Study of Science, Cato Institute) opines that:

Mining is a long-term investment process and, although two decades is a long time, some hardrock mines now take 10 years or more just to get approved. What company would be willing to invest hundreds of millions of dollars in a new mine only to see its mining claims suddenly revoked?

Remarkably, the timing of this “reform” is just as bad as the substance. U.S. demand for minerals is climbing steadily: for hundreds of defense, aerospace, electronic, energy, medical, computing, transportation and other applications. Yet, our dependence on China for minerals is at an all-time high and growing, despite increasingly tense diplomatic relations. (Read full article)

Matthew Kandrach, President of Consumer Action for a Strong Economy notes:

The taboo against hard-rock mining in the United States is nonsensical and should be abandoned. Instead, America should embrace a far wiser policy of ensuring greater access to minerals on our public lands, since it’s in our national and economic interest. This would help reduce our heavy dependence on foreign nations for minerals that are needed in the production of advanced weapons systems and a multitude of consumer technologies.

The current problem stems from America adhering to a highly duplicative and inefficient system of regulatory permits and oversight that governs domestic mining. Over all, the mining industry is struggling with a regulatory system that forces them to wait seven to 10 years to obtain a mining permit, in contrast to Canada and Australia where the process takes two to three years.

The permit system was set up during a very different era when the U.S. dominated the production and use of minerals. But those days are long past. China is now the world’s leading producer and exporter of minerals and metals, supplying many that are critical to U.S. manufacturing, our technology and energy sectors, and national defense. Our ongoing dependence is not only a potential vulnerability during a time of increased global tensions, but greatly limits our nation’s ability to capitalize on our mineral wealth. (Read more)

See also:

A Short History of Mining Law 

Six Issues the Promoters of the Green New Deal Have Overlooked

Although the Earth’s climate has been changing for more than 4 billion years all by itself, we are now told that we can stop climate change simply by reducing carbon dioxide emissions from burning fossil fuels.

Ignorance-based plans such as the Green New Deal propose that we terminate electricity generation by fossil fuels and replace all of it with renewables such as wind and solar. Proponents of such plans have not considered the environmental nor economic implications.

“Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.” – Martin Luther King Jr.

1)The Enormous Land Requirements of Wind and Solar Electricity Generation

The enormous land requirements for enough wind and/or solar to replace fossil fuel generation will wreak havoc with agriculture, and will destroy wildlife and their habitats.

According to the Nuclear Energy Institute, for the contiguous U.S.:

If all electricity was supplied by nuclear generation, it would require 3,553 nuclear stations with a total footprint of 4,619 square miles.

If all electricity were to be supplied by solar generation it would require 11,674 solar farms with a total footprint of 525,312 square miles.

If all electricity were to be supplied by wind generation, it would require 6,954 wind farms with a total footprint of 1,808,166 square miles. (Source)

A minor problem: Because wind and solar generation are unreliable and intermittant, these methods would still require backup generation with is usually natural gas or coal generation. Because those backup units would have to be cycled up and down depending on wind and sunlight conditions, one ironic effect would be greenhouse gas emissions from natural gas–fired backup generation  are 22 percent higher than normal operation according to a study by the American Enterprise Institute.

Carbon dioxide (which makes up just 0.04% of the atmosphere) is continually being emitted into the atmosphere and absorbed by the oceans, plants, formation of limestone, etc. According to the U.S. Department of Energy annual emission reports, humans are responsible for about 3% of total CO2 emissions; the rest is from natural sources. Carbon dioxide constitutes about 3% to 4% of total greenhouse gases by volume (water vapor is the main greenhouse gas); therefore anthropogenic CO2 represents just over one-tenth of one percent (0.12%) of total greenhouse gases emitted into the atmosphere each year. The U.S. is responsible for about 18% of global emissions, so elimination of U.S. emissions will make a difference of about 0.02% of total emissions. Is stopping U.S. emissions worth spending trillions of dollars and disrupting our economy? Will that save the planet?

2) The deadly toll on wildlife from all these additional wind or solar installations:

Wind turbines versus wildlife:

“The U.S. Fish and Wildlife Service (FWS) and American Bird Conservancy say wind turbines kill 440,000 bald and golden eagles, hawks, falcons, owls, cranes, egrets, geese and other birds every year in the United States, along with countless insect-eating bats. Newer studies reveal that these appalling estimates are frightfully low and based on misleading or even fraudulent data. The horrific reality is that in the United States alone, “eco-friendly” wind turbines kill an estimated 13 million to 39 million birds and bats every year. See also: Avian mortality from solar farms

3) The Green New Deal Would Have ‘No Effect’ On Climate Change

By Emily Zanotti

A new study from the American Enterprise Institute questions whether the Green New Deal would have any real impact on climate change at all — leaving it little more than an effort to dismantle industry.

The AEI report breaks down the GND into bite-sized policy proposals, assessing not simply the cost, but the proposed effectiveness of each legislative item to address the core goal of the GND: reducing American carbon emissions to a “net zero” by 2050.

The researchers’ ultimate conclusion? “It is not to be taken seriously.”

The “net zero” emissions proposal is particularly nonsensical, AEI warns, given that such an effort would require an estimated $490 billion per year investment in “green energy” ( $3,845 per year per household) and a sharp decrease in land available for agriculture. It also fails to address a very specific problem when it comes to U.S.-specific plans for climate change abatement: it fails to consider that the U.S. is only one of several heavy carbon-emitting nations, and that the vast majority of industrial pollution comes from the developing world and from countries like China and India.

In total, completely enacted, funded, and efficiently meeting goals, things AEI does not anticipate the GND would ever do — the full plan would cut the global increase in temperature by 0.083 to 0.173 degrees Celsius, by 2100, a number, the report says, is “barely distinguishable from zero.” (Source) ☼

4) Another part of the Green New Deal is retrofitting all buildings to be more energy efficient.

A study in the UK estimated that retrofitting British homes would cost $5.6 trillion and retrofitting U.S. homes would cost $26 trillion while achieving only a 50-60% CO2 reduction. (Read more)

5) For most of geologic history, there is no correlation between global temperature and atmospheric CO2 content. Water vapor is the major greenhouse gas, about 25 times more abundant than carbon dioxide.

A major ice age occurred during the Ordovician Period 450 million years ago even thought atmospheric CO2 was 4,000ppm, 10 times higher than it is now. Carbon dioxide dropped during the Carboniferous Period because many of the Earth’s coal deposits formed then. By coincidence, a major ice age occurred at the end of the Carboniferous related to the 145 million year cycle of ice ages. Temperatures rose prior to rise of atmospheric CO2 at the end of the ice age. During the Jurassic and Cretaceous Periods,150 million years ago, CO2 began a long slide from about 2,500ppm to about 350ppm. However, global temperatures remained steamy for 50 million years during the Cretaceous Period at about 13°C warmer than now. The Cretaceous was another period of coal formation.

There is an apparent correlation during the glacial-interglacial cycles of our current ice age. But ice core data shows that temperature changes preceded changes in CO2 by about 800 years (because temperature controls CO2 solubility in the ocean). During the latter part of our current ice age, glacial-interglacial cycles occurred with a periodicity of about 100,000 years which correlates with the changes in Earth’s orbit around the sun as it changes from nearly circular to elliptical with an eccentricity of about 9%. Read more ☼

6) How Infrasound from Wind Turbines Can Cause Cancer

This article from the Alliance for Wise Energy Decisions reviews several research studies that show infrasound from wind turbines can cause cancer. Read the full paper at http://wiseenergy.org/Energy/Health/LFN_and_Cancer.pdf

Here is an introduction:

Recently, President Trump made a statement about the possibility of wind turbine noise causing cancer. Predictably much of the press scoffed at this claim. Even some Republican legislators objected. But what are the facts?

Since this is a technical matter, let’s clarify some basics… Infrasound is Low Frequency Noise (LFN)… Industrial wind turbines generate substantial LFN… A variety of wind turbine LFN caused human and animal health problems have been well-documented (see this small sample of studies)… But what about cancers?

The medical term genotoxins is separated into three main groups: carcinogens, mutagens, and teratogens (i.e. toxins that cause cancer, genetic mutations, or birth defects)… LFN has been identified as a genotoxic agent of disease, capable of inducing blood vessel wall thickening as seen in autopsy, as well as through light and electron microscopy studies. This can lead to well known consequences such as tumor development, cardiac infarcts and/or the need for cardiac bypass surgery. The pathology caused by excessive exposure to LFN is termed vibroacoustic disease (VAD), and has been diagnosed among several occupational and environmentally exposed populations.

See also: Evidence that CO2 emissions do not intensify the greenhouse effect ☼

UPDATE: Paul Driessen, senior policy analyst for the Committee For A Constructive Tomorrow takes apart Joe Biden’s “Clean energy revolution”

Read the full article: Reality bites Joe Biden’s “Clean Energy Revolution”

Among his points:

Before we destroy our energy and economic system, we need to see solid, irrefutable proof that we face an actual climate crisis – and be able to debate and cross examine those who make such claims. So far, instead of a debate, climate crisis skeptics just get vilified and threatened with prosecution.

There’s nothing clean, green, renewable or sustainable about wind, solar or battery power. Those technologies require enormous amounts of land, concrete, steel and other raw materials – and many of their most critical materials are extracted and processed using child labor and near-slave wages for adults, with few or no workplace safety rules, and with horrific impacts on land, air and water quality.

The Biden plan would cost many times the “$1.7 trillion in federal funds over ten years” that his talking points use to entice voters: dollars, lost jobs, lower living standards and fewer freedoms.

Modern industrialized societies simply cannot function on expensive, intermittent, weather-dependent electricity. As Germany, Britain, Spain, Australia and other countries have shown, that kind of energy eliminates 3-4 times more jobs than it creates – especially in factories and assembly lines, which cannot operate with repeated electricity interruptions … and cannot compete with foreign companies that get affordable 24/7/365 coal-based electricity and pay their workers far less than $15, $25 or $45 per hour.

A Summary of Earth’s Climate History-a Geologist’s View

Thoughts from Dr. Eric T. Karlstrom, Emeritus Professor of Geography, California State University, Stanislaus

Earth scientists have learned that earth was significantly warmer than present (by perhaps about 8 to 10 °C) for about 80% of the earth’s 4.6-billion-year history.

From a historical as well as a geological perspective, warming trends are beneficial for humans, for agriculture, and for plants and animals. No “tipping points’ were reached during past geologic intervals when temperatures and CO2 concentrations were much higher than present. In fact, life flourished during these relatively warmer conditions.

For the past 2 million years (Quaternary Period), the earth has been in an ice age comprised of some 20 major glacial/interglacial cycles. Each cycle was characterized by very wide swings of temperature and precipitation.

For the past 10,000 years, the earth has experienced an unusually warm and stable (interglacial) climate known as the Holocene Epoch. The stable and favorable climate of this interglacial allowed for the development of agriculture and human civilization.

71% of the earth is covered with ocean water. 90% of the world’s ice is in Antarctica. Our instrumental climate records only extend about 100 to 150 years back. There are still not enough weather stations on the earth to determine the average temperature of the earth. The best data from satellites and the Argo (ocean robot) systems suggests the planet has been cooling slightly since 1998.

Exhaustive analyses of proxy paleoclimatic records (deep sea cores, ice cores, tree-rings, glacial deposits, soils, loess sequences, cave deposits, pollen studies, etc.) by scientists reveal that past climate changes are complex and of varying frequency and magnitude. There is much we still don’t agree on. Many scientists, including myself, believe climate change is cyclical and these cycles are of varying periodicities.

The main climate drivers include variations in solar output, ocean circulation dynamics (the ocean stores some 22 times more heat than the atmosphere and circulates that heat around the globe), and orbital variations in the earth-sun-moon system.

Carbon dioxide has a negligible effect on atmospheric temperatures. Rather, because the oceans hold about 50 times more CO2 than the atmosphere, and because the oceans and atmosphere exchange CO2, CO2 fluctuations are mainly caused by changes in ocean temperatures. And ocean temperature changes are mainly driven by the sun.

Because we have seasons, the earth is constantly warming and cooling in various locales. Weather and climate change is a constant. But is the earth as a whole warming or cooling? The answer to this question depends entirely upon the length of the climate record being analyzed. On the basis of many paleoclimatic records, earth scientists agree that the general trend over the past 3 million years has been toward cooling; the trend over the past 15,000 years has been toward warming; the trend over the past 5,000 years has been toward cooling; and there has been a warming trend since Little Ice Age maxima about 1650 AD. The earth warmed very slightly between about 1975 and 1998, and since 1998 the trend has been toward cooling. Read full post

Chuparosa – the Hummingbird Bush

Chuparosa, Justicia californica, (aka Beloperone) is a perennial plant native to Southeastern California and the Sonoran Desert including Arizona and Sonora and Baja California, Mexico. It is a favorite of hummingbirds which go after the nectar. Other birds go after the sugar-rich center of the flower and seeds. The fruit are elongated, club-shaped capsules about one-half inch long which contain four seeds in the inflated tip.


Chuparosa is a shrub that can grow three- to five feet high and six- to eight feet wide. It is usually found in dry washes and on rocky slopes below elevations of 2,500 feet. The shrub is usually grayish green with hairy branches. Plants initially have succulent oval leaves, up to one inch long, that give way to bright red (and sometimes orange or yellow) flowers. The flowers, up to two inches long, are tubular and grow in clusters at the end of stems. The flowers have a large “lower lip” that opens to reveal a white anther which contains the pollen. According to the Arizona-Sonora Desert Museum (ASDM), Chuparosa flowers can be found any month of the year, except during drought or right after freezes. Big blooms often occur in the winter and early spring months.

According to DesertUSA, “This member of the large, tropical Acanthus family (Acanthaceae) is the only New World genus that extends north into the US. The common name chuparosa, “sucking rose” in Spanish, is abundant with nectar, making it popular among various birds, especially hummingbirds. Quail and house finches eat the seeds. Known locally as honeysuckle, chuparosa is said to have been eaten by the Papago Indians.” Chuparosa is browsed by livestock and deer.

Chuparosas are very drought tolerant and often cultivated as a landscape ornamental in desert regions for its bright flowers and to attract birds. ASDM has a plant care guide for chuparosa here and notes that they can survive quick dips in temperature to 22°F.

See more photos here.

Observations on the new Santa Cruz Valley National Heritage Area

In March, 2019, President Trump signed legislation creating the 3,600 square mile Santa Cruz Valley National Heritage Area in parts of Pima and Santa Cruz Counties, Arizona. This has long been a pet project of Congressman Raul Grijalva. The proposed boundaries of the heritage area encompass major copper mines, sources of construction aggregate, and many ranches.

According to the Arizona Geological Survey, the mines in the area have produced 65 percent of the nation’s copper. (Maps in this article are from AZGS.) It remains to be seen whether establishment of an NHA will impact mining and mineral exploration.

The heritage area will be managed through the National Park Service which will contract management to a “local coordinating entity” which in this case is the Santa Cruz Valley Heritage Alliance. The Alliance will receive $1 million per year up to a maximum of $15 million for its services.

According to the House version of the legislation (link 3 below):

The purposes of this Act include:

(1) to establish the Santa Cruz Valley National Heritage Area in the State of Arizona;

(2) to implement the recommendations of the Alternative Concepts for Commemorating Spanish Colonization study completed by the National Park Service in 1991, and the Feasibility Study for the Santa Cruz Valley National Heritage Area prepared by the Center for Desert Archaeology in July 2005;

(3) to provide a management framework to foster a close working relationship with all levels of government, the private sector, and the local communities in the region and to conserve the region’s heritage while continuing to pursue compatible economic opportunities;

(4) to assist communities, organizations, and citizens in the State of Arizona in identifying, preserving, interpreting, and developing the historical, cultural, scenic, and natural resources of the region for the educational and inspirational benefit of current and future generations; and

(5) to provide appropriate linkages between units of the National Park System and communities, governments, and organizations within the National Heritage Area.

The Act also gives these reassurances:

Nothing in this Act:

(1) abridges the rights of any property owner (whether public or private), including the right to refrain from participating in any plan, project, program, or activity conducted within the National Heritage Area;

(2) requires any property owner to permit public access (including access by Federal, State, Tribal, or local agencies) to the property of the property owner, or to modify public access or use of property of the property owner under any other Federal, State, Tribal, or local law;

(3) alters any duly adopted land use regulation, approved land use plan, or other regulatory authority of any Federal, State, Tribal, or local agency, or conveys any land use or other regulatory authority to any local coordinating entity, including but not necessarily limited to development and management of energy, water, or water-related infrastructure;

(4) authorizes or implies the reservation or appropriation of water or water rights;

(5) diminishes the authority of the State to manage fish and wildlife, including the regulation of fishing and hunting within the National Heritage Area; or

(6) creates any liability, or affects any liability under any other law, of any private property owner with respect to any person injured on the private property.

That sounds good in theory, but experience with other National Heritage Areas is not so good.

The Heritage Foundation (link 5 below) opines:

There are three key reasons why Congress should not create any new NHAs and why existing NHAs should become financially independent of the federal government, as their enabling legislation requires.

1) NHAs divert NPS resources from core responsibilities. NPS advocates and staff have long complained about the limited resources that Congress provides in comparison to its extensive responsibilities. Both the Government Accountability Office (GAO) and the Congressional Research Service estimate that the cost of NPS’s maintenance back-log exceeds several billion dollars and is rising despite increased annual appropriations.

2) Federal costs for NHAs are increasing at a rapid rate.

3) NHAs threaten private property rights. On the surface, most of the legislation designating an NHA, and the subsequent management plans that guide them, include explicit provisions prohibiting the NPS or the management entity from using eminent domain to acquire property. They also prohibit the use of federal funds to acquire private property by way of a voluntary transaction with a willing seller.

Nonetheless, NHAs pose a threat to private property rights through the exercise of restrictive zoning that may severely limit the extent to which property owners can develop or use their property. Termed “regulatory takings,” such zoning abuses are the most common form of property rights abuse today. They are also the most pernicious because they do not require any compensation to owners whose property values are reduced by the new zoning. (Read full article for details.)

The American Policy Center (link 4 below) opines:

Specifically, what is a National Heritage Area? To put it bluntly, it is a pork barrel earmark that harms property rights and local governance. Let me explain why that is. Heritage Areas have boundaries. These are very definite boundaries, and they have very definite consequences for folks who reside within them. National historic significance, obviously, is a very arbitrary term; so anyone’s property can end up falling under those guidelines.

The managing entity sets up non-elected boards, councils and regional governments to oversee policy inside the Heritage Area.

In the mix of special interest groups you’re going to find all of the usual suspects: Environmental groups; planning groups; historic preservation groups; all with their own private agendas – all working behind the scenes, creating policy, hovering over the members of the non-elected boards (perhaps even assuring their own people make up the boards), and all collecting the Park Service funds to pressure local governments to install their agenda. In many cases, these groups actually form a compact with the Interior Department to determine the guidelines that make up the land use management plan and the boundaries of the Heritage Area itself.

Now, after the boundaries are drawn and after the management plan has been approved by the Park Service, the management entity and its special interest groups, are given the federal funds, typically a million dollars a year, or more, and told to spend that money getting the management plan enacted at the local level.

Here’s how they operate with those funds. They go to local boards and local legislators and they say, Congress just passed this Heritage Area. “You are within the boundaries. We have identified these properties as those we deem significant. We have identified these businesses that we deem insignificant and a harm to these properties and a harm to the Heritage Area. We don’t have the power to make laws but you do. And here is some federal money. Now use whatever tools, whatever laws, whatever regulatory procedures you already have to make this management plan come into fruition.”

This sweeping mandate ensures that virtually every square inch of land within the boundaries is subject to the scrutiny of Park Service bureaucrats and their managing partners. That is the way it works. It’s done behind the scenes – out of the way of public input.

True private property ownership lies in one’s ability to do with his property as he wishes. Zoning and land-use policies are local decisions that have traditionally been the purview of locally elected officials who are directly accountable to the citizens that they represent.

But National Heritage Areas corrupt this inherently local process by adding federal dollars, federal mandates, and federal oversight to the mix. Along with an army of special interest carpet baggers who call themselves Stake Holders. (See the article for much more.)


1) P.A. Pearthree and F.M. Conway, 2019, Preliminary evaluation of mineral resources

of the Santa Cruz Valley National Heritage Area, Arizona, Arizona Geological Survey, Open-file Report OFR-19-03 (link)

2) Southwestern Minerals Exploration Association (SMEA), 2001, Mineral Potential of Eastern Pima County, Arizona, Arizona Geological Survey Contributed Report 01-B (link) (Note: I am one of the co-authors of this report.)

3) Text of House version of establishing legislation: H.R. 6522 (115th): Santa Cruz Valley National Heritage Area Act (link)

4) Tom DeWeese, American Policy Center, 2012, National Heritage Areas: the Land Grabs Continue (link)

5) Cheryl Chumley and Ronald Utt, 2007, National Heritage Areas: Costly Economic Development Schemes that Threaten Property Rights, The Heritage Foundation (link)

Globe Chamomile, an invasive species in Arizona

Globe Chamomile (Oncosiphon piluliferum) is a pretty, but prolifically invasive, species. It is currently expanding its range in the Phoenix area. It is a native of South Africa. It was first recorded as an invasive near Los Angeles and San Diego.

According to the Arizona Native Plant Society:

“Globe Chamomile sprouts and grows vegetatively from late November until the end of January. It begins to flower in early January and quickly begins seed setting by early February. The seeds are very light and easily transported by wind and vehicle traffic. In years of sufficient winter moisture, Globe Chamomile can go through up to three generations between November and the end of April, resulting in a prodigious production of plants and seeds in a short period of time. Globe Chamomile readily infests sunny, disturbed soils that are not shaded by vegetation. It readily takes root in bare areas bordering any vegetation, both residential and wild land.” (See more photos) Individual plants can get up to two feet tall.

Globe Chamomile is related to the more commonly known species of chamomile (Matricaria chamomilla) an important, daisy-like medicinal herb native to southern and eastern Europe.

Some claimed medicinal uses for Globe Chamomile: a gynecological aid, an antidiarrheal, a cold remedy, and to treat heart problems. Europeans administered an infusion of the plant for convulsions and the Hottentots used an infusion of the flower and leaf for typhoid and other fevers including malaria. It has also been used as food.

The other name for this plant is Stinknet because of its strong, unpleasant odor. Handling the plant may cause skin irritation or allergic reaction. Pollen may cause allergic reaction.

Read about edible and medicinal plants of the Sonoran Desert:


How infrasound from wind turbines can cause cancer

This article from the Alliance for Wise Energy Decisions reviews several research studies that show infrasound from wind turbines can cause cancer. Read the full paper at http://wiseenergy.org/Energy/Health/LFN_and_Cancer.pdf

Here is an introduction:

Recently, President Trump made a statement about the possibility of wind turbine noise causing cancer. Predictably much of the press scoffed at this claim. Even some Republican legislators objected. But what are the facts?
Since this is a technical matter, let’s clarify some basics… Infrasound is Low Frequency Noise (LFN)… Industrial wind turbines generate substantial LFN… A variety of wind turbine LFN caused human and animal health problems have been well-documented (see this small sample of studies)… But what about cancers?
The medical term genotoxins is separated into three main groups: carcinogens, mutagens, and teratogens (i.e. toxins that cause cancer, genetic mutations, or birth defects)… LFN has been identified as a genotoxic agent of disease, capable of inducing blood vessel wall thickening as seen in autopsy, as well as through light and electron microscopy studies. This can lead to well known consequences such as tumor development, cardiac infarcts and/or the need for cardiac bypass surgery. The pathology caused by excessive exposure to LFN is termed vibroacoustic disease (VAD), and has been diagnosed among several occupational and environmentally exposed populations.
To read about other health problems see: Health Hazards of Wind Turbines  

Preliminary evaluation of mineral resources of the Santa Cruz Valley National Heritage area, Arizona

The Arizona Geological Survey has just published a geological evaluation on the new Santa Cruz Valley Natural Heritage area in southern Arizona. Here is the introduction from AZGS:

The newly designated Santa Cruz Valley National Heritage Area includes ~ 3,600 square miles (9,378 square kilometers; 2,304,000 acres) and hundreds of mines distributed in 20 mining districts in Pima and Santa Cruz Counties. AZGS just released a preliminary evaluation of metallic and industrial minerals of America’s newest National Heritage Area.

The report is accompanied by six figures, two tables and citations for more than 50 published geologic reports and maps from the AZGS and the US Geological Survey. All of which are available as free PDF downloads.

Citation: Pearthree, P.A. and Conway, F.M., 2019, Preliminary evaluation of mineral resources of the proposed Santa Cruz Valley National Heritage Area, Arizona. Arizona Geological Survey Open-File Report OFR-18-03<http://repository.azgs.az.gov/uri_gin/azgs/dlio/1911>;, 7 p.

My comment: It is yet to be determined if designation of a heritage area will have any detrimental effects on mining and mineral exploration. Mining has long been a part of the heritage of this area.