See the Tabbed Pages for links to video tutorials, and a linked list of post titles grouped by topic.

This blog is expressly directed to readers who do not have strong training or backgrounds in science, with the intent of helping them grasp the underpinnings of this important issue. I'm going to present an ongoing series of posts that will develop various aspects of the science of global warming, its causes and possible methods for minimizing its advance and overcoming at least partially its detrimental effects.

Each post will begin with a capsule summary. It will then proceed with captioned sections to amplify and justify the statements and conclusions of the summary. I'll present images and tables where helpful to develop a point, since "a picture is worth a thousand words".

Showing posts with label global average temperature. Show all posts
Showing posts with label global average temperature. Show all posts

Friday, December 7, 2018

Global Greenhouse Gas Emissions Continue Increasing

Carbon dioxide (CO2) emissions from sources all around the globe are estimated to be increasing at a renewed, distressingly rapid, rate for 2018 to date, 2.7% for the year, after having been determined to be lower, about 1.6% for the full year of 2017. This evaluation is part of a detailed accounting of all sources of CO2 emissions and of planetary processes that remove CO2 from the atmosphere.  The study is undertaken now an annual basis and reported in the “Global Carbon Budget 2018” (C. Le Quere and 70 coauthors, Earth Syst. Sci. Data, 10, 2141-2194, 2018).  The main sources of CO2 emissions are use of fossil fuels (coal, oil and gas) and the manufacture of cement.  The two largest factors that remove CO2 are absorption into the waters of the ocean, and plant and soil incorporation of CO2.  The net balance between all emitting and absorbing factors leads to the increase in man-made atmospheric CO2 that is the main concern when considering global warming.  The authors present the increasing trend of atmospheric CO2 in the following graphic:
 
 
Direct measurement of atmospheric CO2 concentration from 1958 to 2018. This graphic represents the difference between man-made sources of CO2 in the atmosphere and its removal by natural earth processes. The authors’ analysis shows that humanity’s use of fossil fuels is a main contributor to increased CO2, and is a main contributor to global warming.
Source: C. Le Quere and coauthors, Earth Syst. Sci. Data, 10, 2141-2194 (2018)
 
 
Why is CO2 emission such a problem?  This gas persists in the atmosphere for centuries, if not longer.  So the coal that was burned when the industrial revolution began produced CO2 that is still part of the atmosphere today, and the aggregate amount of fossil fuels we consume at present produces CO2 that will last for centuries.  The excess accumulation of CO2 shown above cannot be removed economically on the massive scale needed with currently existing technology: the annual growth of atmospheric in 2017 was 4.6±0.2 billion metric tons measured as carbon/yr (or 16.8 billion metric tons measured as CO2/yr).

The increased heat-trapping ability of the additional atmospheric CO2 has alarmed scientists in the past couple of months.  They have issued two dramatic calls to action by the nations of the world (here and here) urging humanity to limit the overall rise in the long-term global average temperature to less than 1.5°C (2.7°F) by 2040 or 2050.  Voluntary national commitments were made by the members of the United Nations to reduce annual emission rates when the Paris Agreement was reached in 2015.  Even at that time, analysis of the commitments recognized that they were seriously insufficient to accomplish the limitation needed.  And in the succeeding three years, even those commitments have not been met.  This is made worse by President Trump’s intention for the U. S. to leave the Paris Agreement; the U. S. remains one of the three top annual emitters of CO2 in the world and its emissions would increase under the president’s policy.

Global warming depends on the total accumulated greenhouse gases (GHGs), not the annual emissions rate.  The heat-trapping effect of GHGs depends on their total accumulated amount in the atmosphere.  A goal of simply reducing the annual emission rate does not replace the need to stabilize the total accumulated amount as soon as possible at as low a level as possible.  As long as the emission rate is above zero, GHGs continue accumulating in the atmosphere, thereby raising the long-term global average temperature.  Only achieving zero GHG emission rates as fast as possible stabilizes the total GHG burden at the low level needed.  

This is shown in the model image below.  It assumes that we start at a value of 100 for the atmospheric GHG level.  From year 0 to year 10 the annual emission rate, shown in blue, is 4% of the amount of the previous year (in the image the rate is multiplied by 25 to scale it to 100).  Over this period the cumulative GHG amount, shown in orange, rises by the 4% amount based on the previous year’s level, resulting in a line curving upward: 
 
 

Magically, after year 10 all net atmospheric emission rates fall to zero (blue) – including those originating from electricity generation, transportation, heating and cooling, and cement manufacture. No new GHGs are added to the atmosphere.  As a result, the total accumulated GHG burden (orange) flattens out, stabilized at the year 10 level.  It’s important to note that reducing the annual emission rate to zero cannot lead to a reduction in the total atmospheric GHG level.  This idealized model illustrates the important fact that the sooner annual emission rates approach zero, the lower the stabilized GHG level will be, with the result that the long-term global average temperature likewise will stabilize at a lower value.
 
The relationship between the accumulated GHG level and the  global average temperature.  The Fifth Assessment Report of the Intergovernmental Panel on Climate Change, issued in 2013-2014, modeled the relationship between total accumulated CO2 in the atmosphere and modeled temperature increases (referred to the value during the early industrial revolution (1861-1880)).  The modeling included four “scenarios”, ranging from the most stringent (zero annual emission rate after 2030-2040; shown in navy blue in the image below), to a “business as usual” scenario (no meaningful policy to reduce emission rates; shown in red below).
 

Historical (black; 1870-2010) and modeled (2010-2100) temperatures (°C) projected for four “scenarios” of differing trends for man-made CO2 concentrations with greatest to essentially no limitations on annual emission rates.  Data point dots are given every 10 years.  The most stringent (navy blue) falls to a near zero emission rate by 2030-2040; the light blue and orange lines are progressively less stringent, and the red line models the absence of meaningful constraints on emission rates.

 
 
Three important conclusions emerge from the modeling shown.  First, the amount of CO2 in the atmosphere at any point along the horizontal axis does not depend on the scenario, that is, it is independent of the annual emission rate.  Second, all four scenarios follow more or less the same path along the CO2-temperature relationship.  This dependence is nearly a linear one: the higher the CO2 level in the atmosphere, the higher the projected temperature.  Indeed, the most stringent scenario (navy blue) shows no significant increase in CO2 level between 2050 and 2100 (those points are all bunched together in the image) and consequently no further increase in projected temperature in those decades.  This projection mirrors the results in the model image shown further above.  Conversely, the unconstrained scenario (red) continues to emit CO2 to 2100, leading to a drastic temperature increase of more than 4.5°C (8.1°F) by the end of the century, a truly frightening possibility.
 
Third, bringing annual emission rates to near zero does not reduce the accumulated CO2 level after reaching a plateau, nor does this lower the projected global average temperature.  It only keeps the CO2 level and the temperature stabilized.  

Many countries in the world are not fulfilling the pledges they made under the Paris Agreement.  The New York Times reports,  based on the most recent evaluation by the International Energy Agency, that major emitting countries around the world, including China and India, are continuing to build new coal-fired electricity plants instead of migrating to renewable energy on the scale needed. In fact, China and Japan are exporting them, building new coal plants in many developing countries.  The United States is reneging on its emissions-reducing policies put in place under former President Obama, and is opening federal lands to new fossil fuel extracting leases.  France is showing how difficult  the political scene is for pursuing policies to address global warming; rioting citizens are opposing a small, scheduled increase in taxes on vehicle fuels.

Conclusion 

This post demonstrates that continuing to emit GHGs at high annual rates inexorably adds to higher CO2 levels in the atmosphere, which leads to higher long-term global average temperatures in a straight-line fashion.  Currently there are no technologies ready to be deployed at scale to remove CO2 from emitting facilities or from the air, and permanently to store it away from the atmosphere.  Only reducing annual emission rates to near zero in the coming two decades, according to the two reports cited at the outset, (some advocate an even shorter schedule) will keep the world from entering a regime of unacceptably high global average temperatures.  All stakeholders need to coalesce around this objective to achieve this goal. 

© 2018 Henry Auer











 













 













Sunday, January 22, 2017

Inquisitor Trump Might Delete U. S. Global Warming Data

Galileo Faced the Inquisition.  In 1633, the astronomer and physicist Galileo Galilei was summoned by the Catholic Church’s chief  Inquisitor, Father Vincenzo Maculano da Firenzuola, to begin his trial for heresy.  He faced the charge of promoting the notion, considered heretical by the Church, that the Earth revolves around the sun.  Church doctrine held that the universe was centered about the Earth, i.e., that the sun turned around our planet; this dogma was central to maintaining the religious authority of Church.  Even so, the earlier work of Copernicus and Kepler had already shown that the planets orbit the sun.

The Inquisition found that Galileo was “vehemently suspected by this Holy Office of [the] heresy…of having believed … the doctrine (which is false and contrary to the Holy and Divine Scriptures) that the sun is the center of the world… and that the earth does move, and is not the center of the world.”  His penalty included the “public edict [that his] book of Dialogues be prohibited, and [that] We condemn thee to the prison of this Holy Office….”

This history shows that the scientific results obtained by Galileo and his predecessors, which did not conform to the Church’s pre-ordained worldview, merited censorship of his work and his imprisonment.  He agreed not to promote his conclusions any longer, and spent the rest of his life under house arrest.

President Trump Erases Global Warming Web Pages.  Minutes after taking the oath of office to become the 45th President of the United States, Donald Trump’s White House expunged all references to global warming and climate change that his predecessor, former President Barack Obama, had included on the White House web site. 

This censorship of science-based policy by the new administration scarcely differs from the Inquisition’s banning of Galileo’s Dialogues.  It may presage the imposition of the pre-ordained worldview of Trump and his retinue which denies global warming, instead of adopting science-based policies to address this critical issue.  We may wonder whether members of the Trump administration acknowledge that the sun is at the center of our solar system.

The Washington Post reported on Dec. 13, 2016  that climate scientists fear that the Trump administration will intentionally oversee the loss of decades worth of data documenting the progression of global warming and climate change.  These data sets have been accumulated by U. S. government scientists, and others whose research is supported by the U. S. government.  They currently reside on government computers and servers.  An interview with meteorologist Eric Holthaus on NPR’s program “All Things Considered” on Dec. 14, 2016 speculated on how the loss of this data might transpire: “across-the-board” budget cuts in climate science that could result in government scientists having to make difficult decisions on which data to maintain, and which to allow to lapse.

The U. S. government’s data are robust repositories of climate information; the resources used to acquire them include satellites and ocean-based buoys.  The resulting information is freely available to scientists the world over pursuing climate research and to officials developing climate policy.  If these fears materialize, not only may existing data be lost, but the ambition to continue climate observation by the U. S. may wane under the Trump administration.  It may reason that pressure to adopt policies fighting warming may be weaker in the absence of new information supporting the need for action.  (Similar reasoning presumably underlies Congress’s failure to fund gun violence research at the Centers for Disease Control and Prevention since 1997.)

In response to this potential threat nongovernmental climate scientists are volunteering to copy existing databases onto other servers to ensure their preservation.   

A different U. S. agency policy facilitates access to research data. The potential loss of government-sponsored climate data as a result of policies under the Trump administration stands in stark contrast to information policies in effect at the U.S. National Institutes of Health (NIH) since 2003.  The U.S. government determined that it was in the interests of the public and the life sciences community that research data underlying published articles, supported by NIH funding, be made available to others.  The goals of the policy are copied here:

“Data sharing allows scientists to expedite the translation of research results into knowledge, products, and procedures to improve human health.
“There are many reasons to share data from NIH-supported studies. Sharing data reinforces open scientific inquiry, encourages diversity of analysis and opinion, promotes new research, makes possible the testing of new or alternative hypotheses and methods of analysis, supports studies on data collection methods and measurement, facilitates the education of new researchers, enables the exploration of topics not envisioned by the initial investigators, and permits the creation of new datasets when data from multiple sources are combined.
“In NIH's view, all data should be considered for data sharing. Data should be made as widely and freely available as possible while safeguarding [privacy and confidentiality].” (Emphasis in original).

In summary, data obtained by NIH-supported research must be made public in order to promote scientific, technological and medical progress, i.e., for the public welfare. 

Climate data must be preserved.  The same principles apply to climate data now held on government computers and servers.  Public welfare is promoted by safeguarding existing climate data, and by making that information freely available to researchers worldwide. 

The incoming administration does not have the right to oversee loss of these climate databases. The information was gathered by federal scientists working in U. S. government agencies, which are supported by us, the taxpaying public. The data belong to us.  The potential loss of this information would constitute a harm to our welfare, since it would impede research on the causes and effects of global warming, to our detriment. 

President Trump and members of his administration are behaving like present-day climate inquisitors.  They do not accept the incontrovertible scientific evidence that global warming is happening and that human activity is largely responsible.  President Trump has called global warming a Chinese hoax, and has threatened to withdraw from the United Nations-sponsored climate accord reached in Paris in 2015.  Scott Pruitt, the designated administrator of the Environmental Protection Administration, has repeatedly sued the very agency he has now been nominated to lead while serving as Oklahoma’s Attorney General.   Secretary-designate of the Department of the Interior, Ryan Zinke, has taken many anti-environmental positions in his earlier career.  The Economist (Jan. 21, 2017; p. 15) has classified other cabinet designees as “climate-change sceptics”: Vice President Mike Pence; Chief of Staff Reince Priebus; Rex Tillerson, Secretary-designate of State (disagreeing that climate change posed a national security risk); Rick Perry, Secretary-designate of Energy; Mike Pompeo, Director-designate of the Central Intelligence Agency; Steve Bannon, Chief strategist; and still others. 

The would-be inquisitors of the Trump administration cannot be permitted to destroy the public’s climate information.  Rather, the government should be protecting and using it beneficially to promulgate meaningful climate policies.
© 2017 Henry Auer

Thursday, November 17, 2016

"Trump is Global Warming Danger": Letter to the Hartford Courant

This writer submitted the following Letter to the Editor of the Hartford (CT) Courant, which was published November 16, 2016.  The text is shown below, followed by a screen shot of the letter from the Courant’s website.
 
                             =============================

 Letters  Trump is Global Warming Danger
 
NOVEMBER 16, 2016
 
President-elect Donald Trump has tweeted that "global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive". He has appointed a global warming denier, Myron Ebell, to lead the transition team at the Environmental Protection Agency, where he will oversee dismantling federal policies directed toward reducing emission rates.
 
Undoing America's leadership role in the world's 2015 agreement to battle global warming would not only unleash further U.S. greenhouse gas emissions, but also unravel the worldwide agreement.
 
Scientists around the globe have clearly shown that human burning of fossil fuels causes increased carbon dioxide emissions, and that the added carbon dioxide causes warming of the planet and its resulting environmental harms. Continued unconstrained emissions will wreak worsening environmental damage, leaving our children to contend with the consequences.
 
I spoke about the science of global warming to high school students two days after the election. They thanked me profusely. It's clear they understood the dangers that continued warming would present for their future.  Especially for their sakes, we should oppose Trump's policies.
 
Henry E. Auer, New Haven
 
The writer, who holds a Ph.D. in physical biochemistry, has published the Global Warming Blog at warmgloblog.blogspot.com since 2010.
 
                             =============================

 
                  Screen shot of writer's letter to the editor of the Hartford Courant, accessed  
               November 17, 2016.
 
 
© 2016 Hartford Courant and Henry Auer

Wednesday, August 24, 2016

The Will to Change: Private Enterprises Reduce Their Emissions

Summary: Global average temperatures have been at record levels month by month up to the time of writing (August 2016), and for most years since 2000.  When attention focuses on the U.S., the number of days in a year above 100ºF (37.8ºC) is forecast to grow dramatically, for example by 2060 and 2100.

Contrary to the operating strategies of large fossil fuel companies, we present here examples of two companies and an industry that embrace the changes demanded by the growing global warming crisis.  A large electricity generating utility, NRG Energy, is developing renewable energy sources as part of its electricity portfolio.  The American trucking industry embraces the regulations just issued requiring trucks to be more fuel efficient and to emit lower amounts of greenhouse gases.  Apple, following examples set by Walmart and Google, is contracting with renewable energy providers for long-term supplies of electricity to fulfill its growing needs.

When confronting the challenges of global warming American capitalism has to rediscover the positive entrepreneurial attitude that led to American expansion in the last two centuries.  Fossil fuel companies are resisting such change.  But the three examples presented here show what can be achieved when will prevails.  They illustrate the “can-do” approach that will successfully address global warming.
  

Global average temperatures in 2016, month by month, are higher than in recorded history for the same month in earlier years, according to the U. S. National Aeronautics and Space Administration.    Three of four recent heat waves yielding record high temperatures were caused at least in part by man-made global warming .

Temperature extremes in the U. S. are projected to increase drastically in the remainder of this century (see the graphic below)


Number of days in 48 states of the U. S. in each year in which the temperature exceeded 100ºF (37.8ºC) historically averaged from 1991 to 2010 (upper left), and projected for the case that no measures are in place to abate emissions of greenhouse gases, for 2060 (center) and 2100 (lower right).  In each map, NEUTRAL SHADING characterizes 0-5 days per year; TAN, 5-10 days; LIGHT ORANGE, 10-25 days; MEDIUM ORANGE, 25-50 days; and FULL ORANGE, more than 50 days.  The BOLD NUMBERS give the historical or projected number of days per year over 100ºF for the cities named.
Prepared by and adapted from Climate Central http://www.climatecentral.org/;
  

The data for the recent past in the upper left map show that the area around Phoenix, AZ and the southern plains are already very hot, as many Americans already know.  But if worldwide emissions continue unabated for the rest of the century warming of the climate will continue.  Climate Central projects that much of the U. S. will have more days over 100ºF in regions that are now relatively temperate.  By 2100 this trend yields projections for drastically hot climates in the California central valley, the southwestern desert, and much of the central Great Plains extending all across the South to the Atlantic coast.  These results reflect that projected global average temperature increases at any time are directly related to the additional amount of carbon dioxide (and other greenhouse gases, GHGs) in the atmosphere at that time.

Extremes of heat of the extent shown in the above graphic strongly suggest that agricultural yields may suffer seriously, and that human wellbeing may be severely affected.

Companies and industries grasp the need for reduced emissions.  NRG Energy is the largest independent electricity producer in the U. S.  The power industry emits the most GHGs, mostly as carbon dioxide (CO2), of any sector in the economy, burning vast amounts of fossil fuels to drive generation.  In 2014 NRG was the fourth largest emitter in the power industry. 

David Crane became its Chief Executive Officer in 2003.  Although his earlier experience had been in the conventional power industry, shortly after taking over he undertook to transform a significant portion of NRG’s generation into renewable energy production.  He invested in the Ivanpah thermal solar plant in the California desert, and in a smaller solar panel farm in Massachusetts, as well as wind energy and electric car charging stations.  Mr. Crane stated “It’s the destiny of NRG to be a leader, to create a more sustainable and prosperous future while winning the fight against climate change.”  One year ago NRG set the goal of reducing emissions by 90% by 2050. 

The Ivanpah plant, however, encountered problems; it produced less power than expected, and a May 2016 fire in a major component damaged its ability to generate electricity.  NRG also faced competitive challenges from solar panels, whose price was falling more than expected. 

As a result, the NRG board and its investors lost faith in Mr. Crane, and he was replaced late in 2015 by the company’s Chief Operating Officer, Mauricio Guttierez.  Mr. Crane’s problems may have been due to his ambition to implement renewable energy too fast.  Indeed, Mr. Guttierez is continuing to steer NRG along a similar renewable path, but at a more measured pace.  In retrospect Mr. Crane’s vision served an important function, pioneering a positive culture in the company to expand the role of renewable energy in its operations.

The American trucking industry worked to prepare new fuel standards in collaboration with the Federal government and some environmental organizations.  Currently the nation’s truck fleet averages about 6 miles per gallon (39 liters per 100 km) of fuel.  Although trucks number only 5% of the vehicles driven they produce about 20% of the CO2 emitted by transportation vehicles.  The industry was involved in the negotiations leading to the final rule, winning its support.  The rule imposes an improvement in efficiency of 25% over ten years, producing an estimate of US$170 billion in savings over that time and reducing fuel demand by 2 billion barrels in the useful lifetime of a tractor.  The costs of modifying the tractors to achieve this efficiency are recovered by the long-term savings in fuel use.  PepsiCo provides an example of corporate support for the rule.  Its chief executive said “The steps we have taken to boost efficiency of our fleet … have significantly reduced emissions while lowering our operating costs.  And we are committed to doing much more.”

This rule complements the Obama administration’s earlier rule governing passenger vehicles, whose fuel efficiency is to double over a similar period of time.

In its editorial on the trucking rule, the New York Times wrote “it is heartening, if not downright astonishing, to see an industry targeted by an aggressive rule to reduce GHGs welcoming that rule. It is also heartening to be able to provide proof … that regulators and industry can, in fact, produce a mutually acceptable result”.  The Times contrasts this case with the fierce opposition of the American electricity industry to President Obama’s Clean Power Plan, the rule intended to reduce emissions from large power generation plants.

Apple Goes Green.  The technology company Apple is on track to furnish most of its electricity demand in the U. S. from renewable sources – solar, wind and hydroelectric power, both in California (where its head office is located) and elsewhere in the U. S.  Its demand is growing rapidly, because not only is it building a new corporate headquarter campus and increasing the number of retail outlets, but importantly its power needs for cloud storage are growing rapidly. 

Like Walmart and Google, Apple has been granted federal recognition as a wholesale provider of electricity, permitting it to operate nationwide; in fact its main customer will be itself.  For example, about 50% of its needs will be provided by a 25 year contract with First Solar’s California Flats solar farm, now under construction.  Apple’s motivations are both environmental and economic; renewable energy provides carbon-free power, and its contract costs are highly favorable.  Google’s Gary Demasi, director of operations for data center energy and location strategy, praised Apple’s strategy, saying “Renewable energy, from a cost perspective, is now competitive with other forms of energy, much more so than it was a few years ago.”
 
Discussion
 
American expansion in the nineteenth and twentieth centuries, and its development into an economic power, were fostered by a positive attitude with respect to enterprise, a “can-do” culture that saw unmet needs, overcame obstacles and created successful enterprises in the private sector.   Machinery and technologies were invented, matured into widespread use, and perhaps declined as progress in allied fields overtook them.   But in the late twentieth century scientific investigations showed that certain technologies had dangerous or toxic side effects on society, demanding new creativity to overcome them.  But the industries in question, instead of rising to the challenge, sought to entrench themselves in the status quo, resisting change.  Instead of continuing with a “can-do” mentality, they adopted a “won’t change” mindset, overtly resisting change, seeking to continue reaping profit from their tainted technologies.  The conventional energy industry, based as it is on burning fossil fuels, is a prime example of the “won’t change” framework.  It promotes continued use of fossil fuels indefinitely, just as it has for more than a century.  It fails to concede the unintended harms wrought by use of fossil fuels on the global climate, and dismisses or belittles the damage foreseen by continued release of GHGs.

The three cases outlined here, NRG and its changing culture of developing renewable energy, the American trucking industry embracing the regulatory changes that will reduce GHG emissions, and Apple’s development of its own renewable energy sources, are all examples of a resurgent “can-do” operating culture in American enterprise.  This attitude is essential in addressing the worldwide crisis of global warming.  These companies and groups have embraced the existence of the problem and recognized that they can play a significant role in minimizing its future effects.  They shun the “won’t change” approach shown by many.  They accept the challenge that global warming confronts us with, and proceed enthusiastically with a “can-do” attitude.  The winds of change are at their backs.

© 2016 Henry Auer
 

Thursday, August 11, 2016

The Will to Change: Oil Companies Should Embrace Renewable Energy

Summary: Exxon’s scientists conducted extensive research in the 1970’s and 1980’s showing that use of fossil fuels produces greenhouse gases that warm the planet.  These results were accepted by the company’s management.  By the 1990’s, however, the fossil fuel industry changed its message.  It began a campaign to plant doubts in the minds of the public about the reality of manmade global warming and its effects.

Although many large American companies have prospered because they embodied an optimistic culture, a “can-do” spirit, by the end of the 20th century the fossil fuel companies adopted a “won’t change” attitude.  They resisted the scientific reality of manmade global warming, seeking to continue their business model of producing fossil fuels to supply the world’s energy.

Yet objective climate science shows that continued atmospheric accumulation of greenhouse gases such as carbon dioxide will lead to large increases in the global average temperature.  In face of this threat the world needs to move rapidly toward a carbon-free energy economy.  The large fossil fuel companies can play a major role in this shift, were they to adopt a “can-do” spirit.  The technologies already exist, the labor market is waiting, and they have the resources to carry out this transformation while remaining profitable.

  

Exxon’s Own Research on Global Warming.  As the issue of manmade global warming gained prominence in recent decades, scientists at Exxon carried out research on the phenomenon in its own laboratories.   This program was extensive enough that it led to about 50 publications in peer-reviewed scientific journals.  An Exxon scientist involved in this work told his corporate superiors that their company should embark on measures that would reduce emissions of greenhouse gases (GHGs).   

By the end of the 1980s, however, the corporate view on warming reversed sides.  The company sought to raise doubts about the reality of global warming.  As the United Nations-sponsored negotiations leading to the Kyoto Protocol, limiting emissions from developed countries, came to fruition, Exxon and other fossil fuel companies opposed the treaty, undertaking extensive lobbying efforts.  When the time came to consider the Protocol in the U. S. Senate in 1997, the vote to take up the treaty for debate failed unanimously.

Promoting Doubt about Global Warming.  From that period to the present, fossil fuel companies have engaged in a campaign that seeks to raise questions about global warming in the minds of citizens, leading them to doubt its reality and especially of its manmade cause.  This tactic had previously been used advantageously by the tobacco industry in its struggle to dissociate smoking from its harmful effects on smokers’ health (Naomi Oreskes and Erik M. Conway, “Merchants of Doubt”, Bloomsbury Press, 2010).  Indeed, some of the same personalities, having seemingly authoritative backgrounds in science, appeared in both battles.  Such doubt results in reduced pressure for change such as abandoning the extraction of fossil fuels that emit carbon dioxide, an important GHG. 

“Can-Do” Optimism.  This writer pointed out in the preceding blog post that the optimistic, “can-do” spirit that drove the growth of the U. S. during the nineteenth and early twentieth centuries has faded somewhat.  Now, many powerful industries, including the fossil fuel industry, when faced with indisputable scientific evidence indicating that they should change their operations, resist stubbornly.  They do this by promoting doubts about the scientific findings in question, and by adopting “won’t change” attitudes. 

Simplified historical sketches are presented below of three large American corporations.  The first two are considered “can-do” companies here. They have confronted technological changes in their industries and adopted new business plans to adapt to them.   The third one is ExxonMobil.

International Business Machines (IBM) was founded in 1911 when three companies combined to form the Computing-Tabulating-Recording Company, IBM’s precursor.  The company wrote “[f]rom the beginning, IBM defines itself not by strategies or products—which range from commercial scales to punch card tabulators—but by forward-thinking culture and management practices…”.  This culture informed the company’s development of new apparatuses that, for example, contributed logistics enabling the Social Security Act of 1935, a major piece of anti-Great Depression policy, to function.  In the post-war years IBM expanded by developing electronic computers, which permitted it to become an important international company. In the following decade IBM responded to new challenges by expanding its mainframe computer systems, leading to five-fold growth in income.  From 1971 to 1992 it overhauled its business model to adapt to the growing trend toward personal computing, but even so confronted difficulties created largely by its own successes.  As use of the internet has expanded, IBM has moved away from hardware to provide software and computing services.

General Electric (GE) was founded in 1889 by Thomas Edison based on his electric lamps, electric generators and motors, and power distribution.  Over the years, it developed or acquired businesses such as radio broadcasting, railroad and aircraft locomotion, electronic computing, finance, and medical diagnostic technology.  The list of its acquisitions and divestments is extensive, and was responsive to the changing business environments the company’s operations encountered.  Finance, for example, was intended to provide funds for purchasing its products, but portions have been sold off in recent years.  Additionally, as an outgrowth of its generation technology, GE manufactures industrial-scale wind turbines.

ExxonMobil began operations shortly after oil was discovered in Pennsylvania in 1859.  John D. Rockefeller formed Standard Oil in 1870 to harvest the oil; at that time the principal refined product was kerosene.  The company grew rapidly, operating in many states and abroad, but was forced to break up its units by two antitrust decisions of the U. S. Supreme Court, in 1892 and again in 1911.  Nevertheless, the separate companies prospered and many recombined again to form a smaller number of Standard companies.  In this period, as the number of automobiles powered by internal combustion engines grew gasoline production surpassed that of kerosene. 

Over the following decades, the various Standard Oil companies focused on extracting petroleum, refining it to yield gasoline, and distributing it at retail.  They also produced lubricating oils, petrochemicals and other products as years passed.  A principal Standard Oil company adopted the brand “Esso” (pronouncing the letters “S” and “O”) in 1926, which was changed to Exxon in 1972.  Exxon merged with Mobil, itself another Standard Oil company, in 1999 to become ExxonMobil.  ExxonMobil is now the largest non-state producer of petroleum and its products in the world.

Exxon set up its Solar Power Corporation in 1973 to make solar photovoltaic cells.  After determining that solar would not become profitable until 2012 Exxon sold Solar Power off in 1984.  (Mobil also had a solar venture from 1974–1994.)  From 1970 to 1986 Exxon ran a nuclear fuel preparation company.  Wikipedia (as of August 2016) lists no other non-fossil fuel ventures for Exxon.

In 2002 ExxonMobil, General Electric and others formed the Global Climate and Energy Project at Stanford University to develop new energy technologies emitting greatly reduced greenhouse gas emissions.  It intended to invest more than US$200 million over 10 years.  As of 2015, 46 research institutions worldwide are participating.  In 2009 ExxonMobil and Synthetic Genomics Inc (SGI). began research in their algae biofuels program.  Unfortunately, the project did not provide positive results and ExxonMobil cut back its support severely in 2013.   The company also established an energy research program with the University of Texas (Austin) Energy Institute.

Two “Can-Do” companies.  IBM and GE are categorized here as “can-do” companies.  Their histories embody a spirit of optimism, confronting the challenges of changing times and overcoming them to continue as successful ventures with new products.  IBM especially had troubles, and is currently dealing with yet more rapid change in information technology.

Energy demand is high and increasing, especially in countries of the developing world.  As their economies grow, the need for energy supplies grows in pace with their economies.  Their populations are becoming more affluent, entering the middle classes.  The most populous developing countries are China and India, and their demand for energy has been growing dramatically in recent decades.  In addition, whereas China’s population is relatively stable, that of India is growing rapidly.  In many developing countries including India, energy demand is fed both by growth in economic activity and by increasing populations.  The world’s population, now more than 7 billion people, is expected to grow to 9 billion by about 2040.

The fossil fuel industry has not had to overcome industry-wide challenges in order to grow.  The long-term worldwide demand for fossil fuels has never been in doubt (barring a few short-term hiccups and the current decline in demand for coal in the U.S. and Europe).  Commercial pressures in this industry have come primarily from within to improve its core technologies, rather than from a need to reinvent the companies by formulating new business models.  The large size of this industry and the confidence that demand for its products would stretch indefinitely into the future has led to its seeming complacency. 

ExxonMobil is actively resisting change.  In order to continue defending the role of the industry in the global economy, ExxonMobil and other fossil fuel companies are digging in their heels, resisting pressures for change coming from the need to minimize further warming of our planet.  As outlined above their attitude is one of resisting change, and of mobilizing their considerable financial resources and political influence to create doubt and oppose the need for change.  This may be changing, however.  Six non-U.S. oil companies and ExxonMobil have recently endorsed a price on carbon.

Total accumulated GHGs dictate how much warming (on average) Earth will undergo.  As manmade carbon dioxide and other GHGs continue accumulating in the atmosphere, the projected further increase in global average temperature rises accordingly.  This is shown in a chart from the Fifth Assessment Report (2013) of the Intergovernmental Panel on Climate Change, below:

Dependence of the projected change in global average temperature from about 1870 to 2100 (vertical axis) on the total amount of manmade carbon dioxide (as the main GHG; horizontal axis) foreseen from four emission “scenarios”, starting in 1890.  Circles represent each decade.  BLACK, historical data to 2010.  DARK BLUE, LIGHT BLUE, ORANGE, and RED represent projections for successively less stringent limits on emissions, from almost complete of emissions by 2050 to no meaningful limitation at all.
Source: Intergovernmental Panel on Climate Change, Fifth Assessment Report http://www.climatechange2013.org/images/report/WG1AR5_SPM_FINAL.pdf


The graphic makes clear that the increase in the total accumulated manmade carbon dioxide concentration in the air governs the change in global average temperature.  Only by minimizing future emissions using the most stringent constraints possible (DARK BLUE line and dots in the chart) can humanity keep further increases in global average temperature as small as possible.

The fossil fuel industry needs rapidly to change its business model. In the 1970s-1980s Exxon understood the threat from global warming.  But by the end of the 20th century it and rest of the fossil fuel industry were sowing doubts about manmade global warming and resisting the need to change.  Even so, the reality shown in the image above is that continued extraction and burning of fossil fuels moves the world further along the trajectory of higher atmospheric carbon dioxide and higher global average temperature, to the detriment of all humanity. 
 
There is no avoiding the imperative to abandon further extraction, and to begin at the present time to decarbonize the world’s energy economy.  Many needed  technologies already exist, the labor force awaits the coming job opportunities, and the large international fossil fuel companies have the resources to undertake these changes.  What’s missing is the will to change their business models.  The world looks to them to adopt the “can-do” spirit that drives capitalism, leading to new sources of revenue and profit, by creating a decarbonized economy.

© 2016 Henry Auer