Keith E. Idso

Last updated
Keith Edward Idso
Alma mater University of Arizona, Arizona State University
Scientific career
Fields Botany
Institutions Center for the Study of Carbon Dioxide and Global Change
Thesis Partial purification and characterization of three environmentally-sensitive proteins from sour orange tree leaves  (1997)

Keith E. Idso is a botanist and vice president of the Center for the Study of Carbon Dioxide and Global Change. He is the brother of Craig D. Idso and son of Sherwood B. Idso. He received his B.S. in Agriculture with a major in Plant Sciences from the University of Arizona and his M.S. from the same institution with a major in Agronomy and Plant Genetics. He completed his Ph.D. in Botany at Arizona State University. In 1994, Idso, along with his father, published a review paper on the topic of increased CO2 levels and their effects on plant growth. The paper concluded that not only did other factors not diminish the ability of CO2 to increase plant growth rates, that "the data show the relative growth-enhancing effects of atmospheric CO2 enrichment to be greatest when resource limitations and environmental stresses are most severe." [1] As of 1999, he was teaching biology in the Maricopa County Community College District as an adjunct professor, [2] a post to which he was appointed in 1996. [3]

In 1998, Idso spoke at the Doctors for Disaster Preparedness' annual meeting in Scottsdale, Arizona. His talk was entitled "Direct Biological Effects of Increasing Levels of Atmospheric Carbon Dioxide." [4] In 1999, Idso was appointed by the Arizona Speaker of the House of Representatives to serve on the Arizona Advisory Council on Environmental Education. [5]

Related Research Articles

<span class="mw-page-title-main">Carbon dioxide</span> Chemical compound with formula CO₂

Carbon dioxide (chemical formula CO2) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. It is a trace gas in Earth's atmosphere at 421 parts per million (ppm), or about 0.04% by volume (as of May 2022), having risen from pre-industrial levels of 280 ppm. Burning fossil fuels is the primary cause of these increased CO2 concentrations and also the primary cause of climate change. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater. When carbon dioxide dissolves in water, it forms carbonate and mainly bicarbonate (HCO
3
), which causes ocean acidification as atmospheric CO2 levels increase.

<span class="mw-page-title-main">Carbon cycle</span> Natural processes of carbon exchange

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone. Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to make Earth capable of sustaining life. It describes the movement of carbon as it is recycled and reused throughout the biosphere, as well as long-term processes of carbon sequestration to and release from carbon sinks. Carbon sinks in the land and the ocean each currently take up about one-quarter of anthropogenic carbon emissions each year.

The Center for the Study of Carbon Dioxide and Global Change is a 501(c)(3) non-profit organization based in Tempe, Arizona. It is seen as a front group for the fossil fuel industry, and as promoting climate change denial. The Center produces a weekly online science newsletter called CO2Science.

The Global Warming Petition Project, also known as the Oregon Petition, is a group which urges the United States government to reject the Kyoto Protocol of 1997 and similar policies. Their petition challenges the scientific consensus on climate change. Though the group claims more than thirty-thousand signatories across various scientific fields, the authenticity and methods of the petitioners as well as the signatories' credentials have been questioned, and the project has been characterized as a disinformation campaign engaged in climate change denial.

Craig D. Idso is the founder, president and current chairman of the board of the Center for the Study of Carbon Dioxide and Global Change,. He is the brother of Keith E. Idso and son of Sherwood B. Idso.

Sherwood B. Idso is the president of the Center for the Study of Carbon Dioxide and Global Change, which rejects the scientific consensus on climate change. Previously he was a Research Physicist with the U.S. Department of Agriculture's Agricultural Research Service at the U.S. Water Conservation Laboratory in Phoenix, Arizona, where he worked since June 1967. He was also closely associated with Arizona State University over most of this period, serving as an adjunct professor in the Departments of Geology, Geography, and Botany and Microbiology. His two sons, Craig and Keith, are, respectively, the founder and vice president of the Center for the Study of Carbon Dioxide and Global Change.

<span class="mw-page-title-main">Keeling Curve</span> Graph of atmospheric CO2 from 1958 to the present

The Keeling Curve is a graph of the accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day. The curve is named for the scientist Charles David Keeling, who started the monitoring program and supervised it until his death in 2005.

<span class="mw-page-title-main">Iron fertilization</span>

Iron fertilization is the intentional introduction of iron to iron-poor areas of the ocean surface to stimulate phytoplankton production. This is intended to enhance biological productivity and/or accelerate carbon dioxide sequestration from the atmosphere. Iron is a trace element necessary for photosynthesis in plants. It is highly insoluble in sea water and in a variety of locations is the limiting nutrient for phytoplankton growth. Large algal blooms can be created by supplying iron to iron-deficient ocean waters. These blooms can nourish other organisms.

<span class="mw-page-title-main">Carbon sequestration</span> Storing carbon in a carbon pool (natural as well as enhanced or artificial processes)

Carbon sequestration is the process of storing carbon in a carbon pool. The process acts like a carbon sink, meaning it removes a greenhouse gas, or a precursor of a greenhouse gas from the atmosphere. Carbon sequestration is a naturally occurring process but it can also be enhanced or achieved with technology, for example within carbon capture and storage projects. There are two main types of carbon sequestration: geologic and biologic.

<span class="mw-page-title-main">Free-air concentration enrichment</span>

Free-Air Carbon dioxide Enrichment (FACE) is a method used by ecologists and plant biologists that raises the concentration of CO2 in a specified area and allows the response of plant growth to be measured. Experiments using FACE are required because most studies looking at the effect of elevated CO2 concentrations have been conducted in labs and where there are many missing factors including plant competition. Measuring the effect of elevated CO2 using FACE is a more natural way of estimating how plant growth will change in the future as the CO2 concentration rises in the atmosphere. FACE also allows the effect of elevated CO2 on plants that cannot be grown in small spaces to be measured. However, FACE experiments carry significantly higher costs relative to greenhouse experiments.

Ecophysiology, environmental physiology or physiological ecology is a biological discipline that studies the response of an organism's physiology to environmental conditions. It is closely related to comparative physiology and evolutionary physiology. Ernst Haeckel's coinage bionomy is sometimes employed as a synonym.

<span class="mw-page-title-main">Carbon dioxide in Earth's atmosphere</span> Atmospheric constituent; greenhouse gas

In Earth's atmosphere, carbon dioxide is a trace gas that plays an integral part in the greenhouse effect, carbon cycle, photosynthesis and oceanic carbon cycle. It is one of several greenhouse gases in the atmosphere of Earth. The current global average concentration of CO2 in the atmosphere is 421 ppm as of May 2022. This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10,000 years prior to the mid-18th century. The increase is due to human activity. Burning fossil fuels is the main cause of these increased CO2 concentrations and also the main cause of climate change. Other large anthropogenic sources include cement production, deforestation, and biomass burning.

<span class="mw-page-title-main">Human impact on the nitrogen cycle</span>

Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation. As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over the past century. Global atmospheric nitrous oxide (N2O) mole fractions have increased from a pre-industrial value of ~270 nmol/mol to ~319 nmol/mol in 2005. Human activities account for over one-third of N2O emissions, most of which are due to the agricultural sector. This article is intended to give a brief review of the history of anthropogenic N inputs, and reported impacts of nitrogen inputs on selected terrestrial and aquatic ecosystems.

<span class="mw-page-title-main">Soil respiration</span> Chemical process produced by soil and the organisms within it

Soil respiration refers to the production of carbon dioxide when soil organisms respire. This includes respiration of plant roots, the rhizosphere, microbes and fauna.

William H. Schlesinger is a biogeochemist and the retired president of the Cary Institute of Ecosystem Studies, an independent not-for-profit environmental research organization in Millbrook, New York. He assumed that position after 27 years on the faculty of Duke University, where he served as the Dean of the Nicholas School of the Environment and Earth Sciences and James B. Duke Professor of Biogeochemistry.

Joy K. Ward is a leading evolutionary biologist studying the impact of the environment on plants and ecosystems. She began a new role as the dean of the College of Arts & Sciences at Case Western Reserve University on July 1, 2020 - leaving behind her professorship at the University of Kansas. Her research on plant life has gained her notoriety in many scientific research fields. Aside from her work in the lab, she is also a strong advocate for advancing underrepresented communities' scientific learning and careers. As part of her deanship at the University of Kansas, Ward was an important factor in increasing the number of underrepresented individuals who held faculty positions in STEM subjects. Notably, as a result of her research efforts, she was awarded the Presidential Early Career Award for Scientists and Engineers by U.S. President Barack Obama.

Biomass partitioning is the process by which plants divide their energy among their leaves, stems, roots, and reproductive parts. These four main components of the plant have important morphological roles: leaves take in CO2 and energy from the sun to create carbon compounds, stems grow above competitors to reach sunlight, roots absorb water and mineral nutrients from the soil while anchoring the plant, and reproductive parts facilitate the continuation of species. Plants partition biomass in response to limits or excesses in resources like sunlight, carbon dioxide, mineral nutrients, and water and growth is regulated by a constant balance between the partitioning of biomass between plant parts. An equilibrium between root and shoot growth occurs because roots need carbon compounds from photosynthesis in the shoot and shoots need nitrogen absorbed from the soil by roots. Allocation of biomass is put towards the limit to growth; a limit below ground will focus biomass to the roots and a limit above ground will favor more growth in the shoot.

<span class="mw-page-title-main">Effects of climate change on agriculture</span>

The effects of climate change on agriculture can result in lower crop yields and nutritional quality due to drought, heat waves and flooding as well as increases in pests and plant diseases. The effects are unevenly distributed across the world and are caused by changes in temperature, precipitation and atmospheric carbon dioxide levels due to global climate change. In 2019, millions were already suffering from food insecurity due to climate change. Further, the predicted decline in global crop production is 2% - 6% with each decade. In 2019 it was predicted that food prices would rise by 80% by 2050. This will likely lead to increased food insecurity, disproportionally affecting poorer communities. A 2021 study estimated that the severity of heatwave and drought impacts on crop production tripled over the last 50 years in Europe – from losses of 2.2% during 1964–1990 to losses of 7.3% in 1991–2015.

<span class="mw-page-title-main">Freshwater acidification</span>

Freshwater acidification occurs when acidic inputs enter a body of fresh water through the weathering of rocks, invasion of acidifying gas, or by the reduction of acid anions, like sulfate and nitrate within a lake. Freshwater acidification is primarily caused by sulfur oxides (SOx) and nitrogen oxides (NOx) entering the water from atmospheric depositions and soil leaching. Carbonic acid and dissolved carbon dioxide can also enter freshwaters in a similar manner associated with runoff through carbon dioxide-rich soils. Runoff that contains these compounds may incorporate acidifying hydrogen ions and inorganic aluminum, which can be toxic to marine organisms. Acid rain is also a contributor to freshwater acidification. It is created when SOx and NOx react with water, oxygen, and other oxidants within the clouds.

The CO2 fertilization effect or carbon fertilization effect causes an increased rate of photosynthesis while limiting leaf transpiration in plants. Both processes result from increased levels of atmospheric carbon dioxide (CO2). The carbon fertilization effect varies depending on plant species, air and soil temperature, and availability of water and nutrients. Net primary productivity (NPP) might positively respond to the carbon fertilization effect. Although, evidence shows that enhanced rates of photosynthesis in plants due to CO2 fertilization do not directly enhance all plant growth, and thus carbon storage. The carbon fertilization effect has been reported to be the cause of 44% of gross primary productivity (GPP) increase since the 2000s. Earth System Models, Land System Models and Dynamic Global Vegetation Models are used to investigate and interpret vegetation trends related to increasing levels of atmospheric CO2. However, the ecosystem processes associated with the CO2 fertilization effect remain uncertain and therefore are challenging to model.

References

  1. Idso, Keith; Idso, Sherwood (1994). "Plant responses to atmospheric CO2 enrichment in the face of environmental constraints: a review of the past 10 years' research". Agricultural and Forest Meteorology . 69 (3–4): 153–203. Bibcode:1994AgFM...69..153I. doi:10.1016/0168-1923(94)90025-6.
  2. Cohen, Bonner (1 January 1999). "CO2: Villain or Friend? An Exclusive Interview with Keith E. Idso". Heartlander. The Heartland Institute . Retrieved 15 March 2014.
  3. Vice President, CO2Science
  4. Idso, Keith E. (July 1998). Direct Biological Effects of Increasing Levels of Atmospheric Carbon Dioxide (YouTube video).[ dead YouTube link ]
  5. Harkinson, Josh (4 December 2009). "No. 8: Center for the Study of Carbon Dioxide and Global Change (A.K.A. The Idso Family)". Mother Jones . Retrieved 15 March 2014.