If Tillerson Departs State Department, Will We Go from Bad to Worse?

On November 30th, 2017, the New York Times broke the story that the Trump White House is planning to oust Rex Tillerson as Secretary of State, and replace him with Mike Pompeo, the current Director of the Central Intelligence Agency (CIA) and former Republican member of the U.S. House of Representatives.  (Pompeo, the Times story also suggested, would likely be succeeded at the CIA by Tom Cotton, Republican Senator from Arkansas.)

What should we make of this change – in terms of climate change policy – if it does happen?

Looking Backward for Some Perspective   

On January 3, 2017, two weeks before Inauguration Day, I posted an essay at this blog on “Trying to Remain Positive,” in which I searched for any remotely positive elements of the incoming Trump administration.  I wrote:

“Remarkably, the least worrisome development in regard to anticipated climate change policy may be the nomination of Rex Tillerson to become U.S. Secretary of State.  Two months ago it would have been inconceivable to me that I would write this about the CEO of Exxon-Mobil taking over the State Department (and hence the international dimensions of U.S. climate change policy).  But, think about the other likely candidates.  And unlike many of the other top nominees, Mr. Tillerson is at least an adult, and – in the past (before the election) – he had led his company to reverse course and recognize the scientific reality of human-induced climate change (unlike the President-elect), support the use of a carbon tax when and if the U.S. puts in place a meaningful national climate policy, and characterize the Paris Climate Agreement as “an important step forward by world governments in addressing the serious risks of climate change.”

It’s fair to say that it is little more than damning with faint praise to characterize this pending appointment as “the least worrisome development in regard to climate change policy,” but the reality remains.  Everything is relative.  Of course, whether Mr. Tillerson will maintain and persevere with his previously stated views on climate change is open to question.  And if he does, can he succeed in influencing Oval Office policy when competing with Scott Pruitt, Trump’s pick to run EPA, not to mention Rick Perry, Trump’s bizarre choice to become Secretary of Energy?”

Since then, we have learned the answer to that question.  Despite Secretary Tillerson’s (apparent) support for the U.S. to remain in the Paris Agreement, the combined forces of EPA Administrator Pruitt, Secretary of Energy Perry, and – most important – former White House Chief Strategist, Steve Bannon, the President announced in June his intention to withdraw the United States from the Agreement, following on a host of moves to reverse the Obama administration’s domestic climate change policies.

Secretary Tillerson’s Record at the State Department

Perhaps Mr. Tillerson should be credited for the fact that the State Department has at least remained engaged in the climate change negotiations under the United Nations Framework Convention on Climate Change (UNFCCC), including by sending a delegation to the annual talks in Bonn, Germany (from which I recently returned), where negotiators from other Parties to the Paris Agreement personally related to me how surprised they were by the constructive role the U.S. delegation was continuing to play (in putting meat on the bones of the Paris Agreement).  However, such continued bureaucratic involvement cannot make up for the fact that the U.S. is disengaged at political levels, which must be attributed – at least in part – to Secretary Tillerson’s ineffectiveness in tilting the President toward a more sensible path on climate change policy.

It is beyond the scope of this blog (and my expertise) to comment more broadly on Mr. Tillerson’s general leadership of the State Department or on the many key areas of international relations outside of the climate policy realm.  But, I will note that my Harvard Kennedy School colleague (and former ambassador), Nicholas Burns, together with another former ambassador, Ryan Crocker, described in a scathing New York Times Op-Ed a few days ago how the Foreign Service is being virtually dismantled under Tillerson.

In another harsh New York Times Op-Ed, Antony Blinken recently assessed “How Rex Tillerson Did So Much Damage in So Little Time.”  But, as Blinken points out, the great irony is that Tillerson has had “good judgment” on many of the critical international issues facing the administration.  In addition to (apparently) asking the President to keep the U.S. in the Paris Agreement, Tillerson supported the Trans-Pacific Partnership (TPP), Obama’s nuclear deal with Iran, a calmer approach to North Korea, staying firm against Russian aggression (such as in Ukraine), and calming the Qatar-Saudi Arabia controversy, which was instigated, in part, by Trump himself.  But on all of these issues, Tillerson’s sensible, if inexperienced, diplomatic advice failed to win the day.

Out with the Bad, In with the Worse?

Enter Mike Pompeo.  What would his presence as Secretary of State mean – both broadly, and in particular, for climate change policy?

In broad terms, Pompeo is apparently smart (as is Tillerson), highly ideological (which Tillerson, a moderate, is not), and very partisan (which, again, Tillerson is not).  This does not sound like good news for the leadership of the U.S. Department of State.

On the other hand, Pompeo might be expected to slow down, if not reverse, the hollowing out of the State Department’s political leadership and Foreign Service officer corps that has occurred under Tillerson’s enthusiastic down-sizing of the Department.

Antony Blinken’s conclusion is that with Pompeo in the lead, “we can expect a focus on hard-power solutions to every problem, … and an even more aggressive pursuit of ‘America First.’”  Whereas Tillerson apparently tried to check Mr. Trump’s worst instincts, “now we may see them fully unleashed.”  Good God, what a thought!

The Path Ahead for Global Climate Change Policy

That is a rather frightening prognosis across the board.  But what about climate change policy, in particular?  Does Mr. Pompeo at least share Mr. Tillerson’s personal understanding of the reality of the problem and the importance of addressing the threat?

Sorry, but the answer does not provide cause for hope.  In the House of Representatives, before his move to the CIA, Congressman Pompeo was a consistent, long-term, and vocal skeptic of the science of climate change, and an outspoken critic of the Obama administration’s climate policies, which he characterized in 2015 as a “radical climate change agenda.”  Although he may have modified his views since his appointment as CIA Director, at his confirmation hearings last January, he stated that Obama’s view that climate change is a significant issue for national security was “ignorant, dangerous, and absolutely unbelievable.”

Secretary Tillerson’s exit from the State Department and Mr. Pompeo’s entry, if these take place, will constitute yet another sad chapter in the short history of the sorry state of governance under the presidency of Donald Trump.  During twenty-eight years of teaching at Harvard, until last year I had remained stubbornly non-partisan, but thirteen months after the election, I still find it difficult to believe that we have elected such an individual to be President of the United States.

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Environmental Economics – A Personal Perspective

Today, I wish to take a brief hiatus from reflecting on the current status of climate change policy, whether in the often traumatic context of policy pronouncements – or rather, Twitter messages – from U.S. President Trump and his administration, or in the broader, longer-term context of global actions.  Rather, I want to seize on this mid-summer opportunity to think about the past rather than the present.  In particular, I would like to reflect on the four decades in which I have been engaged in the world of environmental policy, most recently – for the past 30 years – as a scholar, from my professorial perch at Harvard.

This reflection is facilitated by the fact that two years ago, I was asked by the editor of the Singapore Economic Review, Professor Euston Quah, to write about the evolution of the field of environmental economics.  I was pleased to do so, and I decided to take a quite personal approach to summarizing what otherwise would have required a rather Herculean effort.  The result was published earlier this year:  “The Evolution of Environmental Economics:  A View from the Inside,” Singapore Economic Review, volume 62, number 2, 2017, pages 251-274.

[By coincidence, in just a few days, I am travelling to Singapore to make two presentations – on August 4th at the 2017 Singapore Economic Review Conference, and on August 6th at the 7th Congress of the East Asian Association of Environmental and Resource Economics.]

Evolution of the Field of Environmental Economics

Over the past three to four decades, environmental and resource economics has evolved from what was once a relatively obscure application of welfare economics to a prominent field of economics in its own right.  The number of articles on the natural environment appearing in mainstream economics periodicals has continued to increase, as has the number of economics journals dedicated exclusively to environmental and resource topics.  Likewise, the influence of environmental economics on public policy has increased significantly, particularly as greater use has been made of market-based instruments for environmental protection.

My article this year in the Singapore Economic Review provides one economist’s perspective on this twenty-year evolution, first by tracing it through personal reflections on the professional path that has led to my research and writing, and then by summarizing some highlights of my research.  That article was itself rendered feasible because of two previous book projects.

In 1998, my tenth year on the Harvard faculty, I was asked by the British publisher, Edward Elgar Publishing Limited, if I would be willing to assemble my selected papers for a book.  I responded with enthusiasm, and selected 23 articles from the 80 (published and unpublished) papers I had produced as of then – frequently with co-authors – from the time I received my Ph.D. in 1988 through 1999.  Making the selection was not any easy task, but it was a rewarding one.  I categorized my research into seven topic areas:  generic issues in environmental economics; benefits and costs of environmental regulation, and the potential use of efficiency and other criteria for evaluating environmental goals; normative analysis of policy instruments; positive analysis of policy instruments; environmental technology innovation and diffusion; land-use change; and global climate change policy. The resulting volume, Environmental Economics and Public Policy:  Selected Papers of Robert N. Stavins, 1988-1999, was published in 2000.

In 2011, ten years after the publication of my first set of selected papers (1988-1999), Edward Elgar Publishing Limited suggested a second volume.  I selected 26 articles from the many more (published and unpublished) papers I wrote over the decade.  The papers again fell into seven (somewhat different) categories:  generic issues in environmental economics; methods of environmental policy analysis; economic analysis of alternative environmental policy instruments; the economics of technological change; natural resource economics; domestic (national and sub-national) climate change policy; and international dimensions of climate change policy. This led to the publication in 2013 of Economics of Climate Change and Environmental Policy:  Selected Papers of Robert N. Stavins, 2000-2011.

In those two volumes and in the recent article in the Singapore Economic Review, I not only summarized highlights of my research, but I also provided a description of the professional path I have taken.  In this blog essay, I am pleased to offer an abridged version below (with the addition of some relevant hyperlinks).

A Professional Path

In retrospect, my professional path may appear somewhat direct, if not altogether linear, but it hardly seemed so as I travelled along it.  The path I describe took me back and forth across the United States and to several continents, and it took me from physics to philosophy, to agricultural extension, to international development studies, to agricultural economics, and eventually to environmental economics.  During this time, much has changed in the profession.

The early ascendency of the field of environmental economics, during the period from 1970 to 1990, was centered within departments of agricultural and resource economics, mainly at U.S. universities, and at Resources for the Future (RFF), the Washington research institution.  Within most economics departments, environmental studies remained a relatively minor area of applied welfare economics.  So, when I enrolled in the Ph.D. program in Harvard’s Department of Economics in 1983, and when I received my degree five years later, no field of study was offered in the field of environmental or resource economics.

Fortunately, Harvard permitted its graduate students to develop an optional, self-designed field as one of two fields on which they were to be examined orally before proceeding to dissertation research.  Without a resident environmental economist in the Department of Economics (Martin Weitzman had yet to move to Harvard from the Massachusetts Institute of Technology), I developed an outline and reading list of the field through correspondence with leading scholars from other institutions, most prominently Kerry Smith, then at North Carolina State University.  My proposal to prepare for and be examined in the field of environmental and resource economics (along with my other field, econometrics) was approved by the Department’s director of graduate study, Dale Jorgenson.  So began my entry into the scholarly literature of the field.

But my interest in environmental economics pre-dated by a considerable number of years my matriculation at Harvard.  Like many others before and since, I came to the field because of a personal interest in the natural environment (the origin of which I describe below).  This personal interest evolved into a professional one while I was studying for an M.S. degree in agricultural economics at Cornell University in Ithaca, New York, in the late 1970’s, where my thesis advisor and mentor was Kenneth Robinson.  I had originally gone to Cornell to study for a professional degree in international development, but found agricultural economics more appealing, largely because of the opportunity to examine social questions with quantitative methods within a disciplinary framework.

The faculty at Cornell and the care given to graduate students (including masters students like myself) were outstanding.  Kenneth Robinson, my first mentor within the economics profession, became my ongoing role model for intellectual integrity.  It was a sad day many years later, in 2010, when Professor Robinson passed away.

A course in linear algebra, brilliantly taught by S. R. Searle, inspired me to pursue quantitative methods of analysis, and I was fortunate to have the opportunity to study econometrics with Timothy Mount.  One summer I had the privilege of learning about comparative economic systems in a small workshop setting from George Staller of the Cornell Department of Economics.   Working with Bud Stanton, I had my first experience teaching at the university level, and with Olan Forker, I had my first try at serious writing.  All of this led to my research and writing of an M.S. thesis, “Forecasting the Size Distribution of Farms:  A Methodological Analysis of the Dairy Industry in New York State.”  The methodology in question was a variable Markov transition probability matrix, the cells of which were estimated econometrically in a multinomial logit framework.  Much to my surprise, this work subsequently received the Outstanding Master’s Thesis Award in the national competition of the American Agricultural Economics Association.

Armed with my M.S. degree, I moved from Ithaca to Berkeley, California, where I eventually met up with Phillip LeVeen, who had until shortly before that time been a faculty member in the Department of Agricultural and Resource Economics at the University of California, Berkeley.  Phil was another superb mentor, and from him I learned the power of using simple models — by which I mean a set of supply and demand curves hastily drawn on a piece of scrap paper — to develop insights into real-world policy problems.  He introduced me to a topic that was to occupy me for the next few years — California’s perpetual concerns with water allocation.  I remember many afternoons spent working with Phil at his dining room table on questions of water supply and demand.

This work with Phil LeVeen led to a consultancy and then a staff position with the Environmental Defense Fund (EDF), the national advocacy group consisting of lawyers, natural scientists, and — then almost unique among environmental advocacy organizations — economists. This marked the beginning of what became an ongoing professional relationship with this rather remarkable organization.  At EDF, I was able to experience for the first time the use of economic analysis in pursuit of better environmental policy.  With W. R. Zach Willey, EDF’s senior economist in California, as a role model, and Thomas Graff, EDF’s senior attorney, as my mentor, I thrived in EDF’s collegial atmosphere, while thoroughly enjoying life in Berkeley’s “gourmet ghetto,” as my neighborhood was called.  Sadly, Tom Graff — without whose passionate and wise mentorship I would not be where I am today — passed away in 2009 after a heroic battle with cancer.

Although I found the work at EDF rewarding, I worried that I would eventually be constrained — either within the organization or outside it — by my limited education.  So, like many others in similar situations, I considered a law degree as the next logical step.  In fact, I came very close to enrolling at Stanford Law School, but instead, in 1983, I accepted an offer of admission to the Department of Economics at Harvard, moved back east to Cambridge, Massachusetts, and began what has turned out to be a long-term relationship with the University.

But where did my interest in the natural environment begin?  Not at Cornell; it was present long before those days.  But it had not yet arisen when I was studying earlier at Northwestern University, from which I received a B.A. degree in philosophy, having departed from my first scholarly interest, astronomy and astrophysics.

Rather, the origins of my affinity for the natural environment and my interest in resource issues are to be found in the four years I spent in a small, remote village in Sierra Leone, West Africa, as a Peace Corps Volunteer, working in agricultural extension (in particular, paddy rice development).  It was there that I was first exposed both to the qualities of a pristine natural environment and the trade-offs associated with economic development.

So, I had begun in astrophysics, moved to philosophy (both at Northwestern), then to agricultural extension in a developing country (Sierra Leone), then to international development studies and subsequently to agricultural economics (both at Cornell), then to environmental economics and policy (EDF), and eventually to graduate study in economics at Harvard.

My dissertation research at Harvard was directed by a committee of three faculty members:  Joseph Kalt, Zvi Griliches, and Adam Jaffe.  Joseph Kalt was the first faculty member at the Department of Economics to validate my interest in environmental and resource issues, and he was unfailingly generous to me and many other graduate students in making his office (and personal computer, then a rather scarce resource) available at all hours.  Later a colleague at the Kennedy School, Joe provided examples never to be forgotten — that economics could be a meaningful and enjoyable pursuit, and that excellence in teaching was a laudable goal.

Zvi Griliches was not only my advisor and mentor, but my spiritual father as well.  Generations of Harvard graduate students would offer similar testimony.  My own father had died only a year before I entered Harvard, and Zvi soon filled for me many paternal needs.  It is now approaching two decades since Zvi himself passed away.  I felt as if I had lost my father a second time.

If Zvi Griliches provided caring and inspiration, Adam Jaffe provided invaluable day-to-day guidance.  It was Adam who convinced me not to go on the job market in my fourth year with what would have been a mediocre dissertation, but to put in another year and do it right.  That turned out to be some of the best professional advice I have ever received.  Our intensive faculty-student relationship from dissertation days subsequently evolved into a very productive professional (and personal) one that continues to this day.  The name of Adam Jaffe appears frequently in my curriculum vitae as a co-author; he has been and continues to be much more than that.

Although they were not members of my thesis committee, I should acknowledge two other faculty members at the Harvard Department of Economics who played important roles in my education.  I was fortunate to take two courses in economic history (a department requirement) from Jeffrey Williamson, who had recently arrived from the University of Wisconsin.  Williamson’s class sessions were as close as anything I have seen to being economic research laboratories.  In class after class, we would carefully dissect one or more articles — examining hypothesis, theoretical model, data, estimation method, results, and conclusions.  If there was any place where I actually learned how to carry out economic research, it was in those classes.

The other name that is important to highlight is that of Lawrence Goulder, then a faculty member at Harvard, and now a professor at Stanford.  I say this not simply because he was willing to be my examiner in my chosen field of environmental and resource economics, nor because he subsequently became such a close friend.  Rather, what is striking about my professional relationship with Larry is the degree to which he has been an unnamed collaborator on so many projects of mine.  Although he and I have co-authored no more than a few articles, his name probably appears more frequently than anyone else’s in the acknowledgments of papers I have written.  There is no one whose overall judgement in matters of economics I trust more, and no one who has been more helpful.

When I began graduate school at Harvard in 1983, it was my intention to return to EDF as soon as I received my degree.  But by my third year in the program, I had decided to pursue an academic career, although one that was heavily flavored with involvement in the real world of public policy.  Within the context of this professional objective, it was not a difficult decision to accept the offer I received in February, 1988, to become an Assistant Professor at the Kennedy School.  Although some of the other offers I received at that time were also very attractive, the choice for me was obvious, and I have never regretted it — not for a moment.

I remain at the Kennedy School today, where I was promoted to Associate Professor in 1992 (an untenured rank at Harvard), and to a tenured position as Professor of Public Policy in 1997.   In 1998, I accepted an appointment as the Albert Pratt Professor of Business and Government, and in 2017, I was appointed the A. J. Meyer Professor of Energy and Economic Development.

In the year 2000, I launched the Harvard Environmental Economics Program, which today brings together — from across the University — thirty-two Faculty Fellows and twenty-seven Pre-Doctoral Fellows, who are graduate students studying for the Ph.D. degree in economics, political economy and government, public policy, or health policy.  The Program, which I continue to direct, forms links among faculty and graduate students engaged in research, teaching, and outreach in environmental, natural resource, and energy economics and related public policy, by sponsoring research projects, convening workshops, and supporting graduate (and undergraduate) education.

A key reason why the Program — and its various projects, including the Harvard Project on Climate Agreements — have been so successful is the marvelous administrative leadership and staff support it enjoys.  Everyone who has been involved in virtually any way has come away impressed by our Executive Director, Robert Stowe, Program Manager, Jason Chapman, and Bryan Galcik, Communications Coordinator.

At the Kennedy School, I have had an excellent mentor, William Hogan, and a superb advisor and friend, Richard Zeckhauser.  Over the years, six successive deans have provided leadership, guidance, and support (including abundant time for my research and writing) — Graham Allison, Robert Putnam, Albert Carnesale, Joseph Nye, David Ellwood, and Douglas Elmendorf.  At Harvard more broadly, I have benefitted from regular interactions with Daniel Schrag, director of the Harvard University Center for the Environment, and Martin Weitzman of the Department of Economics.  For two decades, Marty and I have co-directed a bi-weekly Seminar in Environmental Economics and Policy, which has provided me with frequent opportunities to learn both from seminar speakers and from Marty’s questions and comments.

I will also note that Harvard President Drew Faust has provided superb leadership of Harvard’s increasing research, teaching, and outreach activity on global climate change, and has been exceptionally supportive of my work on climate change policy.  I will refrain from naming the many others at Harvard and elsewhere from whom I continue to learn — including my many co-authors — only because the list of such valued colleagues and friends is so long.  Included have been a most remarkable set of Ph.D. students, many of whom have gone on to productive — indeed illustrious — careers.

Along the way, I have had my share of administrative responsibilities at Harvard, including serving as Director of Graduate Studies for the Doctoral Program in Public Policy and the Doctoral Program in Political Economy and Government, and Co-Chair of the Harvard Business School-Harvard Kennedy School Joint Degree Programs.  Outside of Harvard, I have had the privilege of being a University Fellow of Resources for the Future, a Research Associate of the National Bureau of Economic Research, and the founding Editor of the Review of Environmental Economics and Policy, as well as a member of the Board of Directors of Resources for the Future, the Scientific Advisory Board of the Fondazione Eni Enrico Mattei, and numerous editorial boards. I must also note that I serve as an editor of the Journal of Wine Economics.  In 2009, I was elected a Fellow of the Association of Environmental and Resource Economists.

What originally attracted me to the Kennedy School was the possibility of combining an academic career with extensive involvement in the development of public policy.  I have not been disappointed.  Indeed, a theme that emerges from my professional engagements over the past twenty-five years is the interplay between scholarly economic research and implementation in real-world political contexts.  This is a two-way street.   In some cases, my policy involvement has come from expertise I developed through research, following a path well worn by academics.  But, in many other cases, my participation in policy matters has stimulated for me entirely new lines of research activity.

Finally, what I have characterized as involvement in policy matters is described at the Kennedy School as faculty outreach, recognized to be of great institutional and social value, along with the two other components of our three-legged professional stool — research and teaching.  I should note that my outreach efforts have fallen into five broad categories:  advisory work with members of Congress and the White House (for example, Project 88, a bipartisan effort co-chaired by former Senator Timothy Wirth and the late Senator John Heinz, to develop innovative approaches to environmental and resource problems); service on federal government panels (for example, my role as Chairman of the Environmental Economics Advisory Committee of the U.S. Environmental Protection Agency Science Advisory Board); on-going consulting — often on an informal basis — with environmental NGOs (most frequently, the Environmental Defense Fund) and private firms; advisory work with state governments; and professional interventions in the international sphere, such as service as a Lead Author for the Second and the Third Assessment Reports and a Coordinating Lead Author for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, professional roles with the World Bank and other international organizations, and advisory work with foreign governments.

Reflections on Common Themes

Preparing the brief professional autobiography for the 2000 and 2013 books and for the 2017 SER article caused me to review many of the several hundred articles, book chapters, and essays I have written over the years.  This allowed me to identify some common themes that emerge from these more than two decades of research and writing.

First, there is the value — or at least, the potential value — of economic analysis of environmental policy.  The cause of virtually all environmental problems in a market economy is economic behavior (that is, imperfect markets affected by externalities), and so economics offers a powerful lens through which to view environmental problems, and therefore a potentially effective set of analytical tools for designing and evaluating environmental policies.

A second message, connected with the first, is the specific value of benefit-cost analysis for helping to promote efficient policies.  Economic efficiency ought to be one of the key criteria for evaluating proposed and existing environmental policies.  Despite its limitations, benefit-cost analysis can be useful for consistently assimilating the disparate information that is pertinent to sound decision making.  If properly done, it can be of considerable help to public officials when they seek to establish or assess environmental policies.

Third, the means governments use to achieve environmental objectives matter greatly, because different policy instruments have very different implications along a number of dimensions, including abatement costs in both the short and the long term.  Market-based instruments are particularly attractive in this regard.

Fourth, an economic perspective is also of value when reflecting on the use of natural resources, whether land, water, fisheries, or forests.  Excessive rates of depletion are frequently due to the nature of the respective property-rights regimes, in particular, common property and open-access.  Economic instruments — such as ITQ systems in the case of fisheries — can and have been employed to bring harvesting rates down to socially efficient levels.

Fifth and finally, policies for addressing global climate change — linked with emissions of carbon dioxide and other greenhouse gases — can benefit greatly from the application of economic thinking.  On the one hand, the long time-horizon of climate change, the profound uncertainty in links between emissions and actual damages, and the possibility of catastrophic climate change present significant challenges to conventional economic analysis.  But, at the same time, the ubiquity of energy generation and use in modern economies means that only market-based policies — essentially carbon pricing regimes — are feasible instruments for achieving truly meaningful emissions reductions.  Hence, despite the challenges, an economic perspective on this greatest of environmental threats is essential.

 A Personal Message

On a personal level, the professional path I have taken offers confirmation that research can influence public policy, and that involvement in public policy can stimulate new research.  The quest — both professional and personal — that took me from Evanston, Illinois, to Sierra Leone, West Africa, to Ithaca, New York, to Berkeley, California, and finally to Cambridge, Massachusetts suggests some consistency of purpose and even function.  I find myself doing similar things, but in different contexts.  It is fair to say that my professional life has taken me along a path that has brought me home.  The words of T. S. Eliot (1943) ring true:

                        We shall not cease from exploration

                        And the end of all our exploring

                        Will be to arrive where we started

                        And know the place for the first time.

Writing these essays, this year’s article, and today’s blog post have forced me to reflect on the past, and think about the future.  The twenty-two articles that comprised the first book of my selected papers and the twenty-six essays that comprised the second volume were the product of twenty-three years on the Harvard faculty (now almost 30 years).  I continue to learn about environmental economics and related public policy from colleagues, collaborators, students, friends, and inhabitants of the ”real world” of public policy – individuals from government, private industry, advocacy groups, and the press.  I hope my learning will continue.

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Why the U.S. Should Remain in the Paris Climate Agreement

            It was widely reported last week that a White House meeting scheduled for Tuesday, April 18th, was to consider whether the United States should remain a party to the Paris Climate Agreement.  At the last second, that meeting was postponed.  As of today, there is no public information about when it may occur.  All that is known is that the Trump Administration had indicated previously that it will make known its position on the Paris Agreement before the G7 Summit, which takes place in Italy in late May.

With that in mind – and with Earth Day being celebrated on April 22nd – I was pleased to co-author with Ban Ki-moon an op-ed which just appeared in The Boston Globe, “Why the US Should Stay in the Paris Climate Agreement” (April 21, 2017).  As you no doubt know, Ban Ki-moon was Secretary-General of the United Nations (2007-2016), but what you may not know is that he is currently my colleague at the Harvard Kennedy School, where he is the Angelopoulos Global Public Leaders Fellow.

Before the Secretary-General Emeritus and I produced the final version of our Boston Globe op-ed, we had written a considerably longer, more detailed essay on the same topic, and so in today’s blog essay, I’m pleased to provide below an expanded version of that longer essay, with hyperlinks added.  I hope you find this of interest.

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Why the U.S. Should Remain in the Paris Climate Agreement:  An Earth Day Message for President Trump

 by Ban Ki-moon and Robert N. Stavins

In the five decades since the first Earth Day was celebrated in 1970, remarkable economic growth around the world has inevitably been accompanied by significant environmental challenges.  While tremendous progress has been made to address concerns about air and water quality, hazardous waste, species extinction, and maintenance of stratospheric ozone, leaders around the world continue to struggle to address the threat of global climate change in the face of the steady accumulation of greenhouse gases in the atmosphere.

The Necessity of International Cooperation

There is broad scientific consensus that human-based emissions of greenhouse gases – including carbon dioxide (CO2) from fossil-fuel combustion and land-use changes – will change the earth’s climate in ways that will have serious environmental, economic, and social consequences. Sixteen of the warmest years on record have occurred since 2000, including 2016 as the warmest of all.  At the same time, winter arctic sea ice is at its lowest extent in recorded history.

Increased temperatures – which might be welcome in some places – are only part of the story.  More important are changes in precipitation, decreased snowpack, glacier melting, droughts in mid to low latitudes, decreased cereal crop productivity at lower latitudes, increased sea level, loss of islands and coastal wetlands, increased flooding, greater storm intensity, species loss, and spread of infectious disease.

These biophysical impacts will have significant economic, social, and political consequences. Estimates of economic damages of unrestrained climate change vary, with most falling in the range of 1 to 3% of world GDP per year by the middle of the current century.

In order to have a 50-50 chance of keeping temperature increases below 2o C (a long-term goal acknowledged by most national governments), it would be necessary to stabilize atmospheric concentrations at 450 parts per million, which in principle could be achieved by cutting global emissions by 60 to 80% below 2005 levels by 2050.

Reducing emissions will not be cheap or easy, but the greatest obstacles are political.  The severe political challenges are due to the fact that greenhouse gases mix in the atmosphere, and so the location of damages is independent of the location of emissions. Any political jurisdiction that takes action incurs the direct costs of that action, but the climate benefits are spread globally. Hence, for any country, the direct climate benefits of taking action will likely be much less than the costs, despite the fact that the global benefits may exceed, possibly greatly, the costs. Therefore, due to the global commons nature of the problem, meaningful international cooperation is necessary.

The Paris Climate Agreement:  A Breakthrough After 20 Years

The countries of the world have been struggling to come up with a solution since they agreed in 1992 to establish the United Nations Framework Convention on Climate Change (UNFCCC). After more than 20 years of negotiations, an important, historic breakthrough came with the signing of the Paris Climate Agreement in 2015, a path-breaking approach that increased the scope of participation from countries accounting for just 14% of global emissions (in the current, second commitment period of the Kyoto Protocol) to countries accounting for 97% under the Paris Agreement!

Contrary to some claims, China, India, Brazil, Korea, South Africa, Mexico, and the other large emerging economies do have obligations under this new approach.  Far from being a “bad deal” for the United States, as EPA Administrator Scott Pruitt has asserted, the Paris Agreement is actually the answer to U.S. prayers going back to the U.S. Senate’s bipartisan (95-0) Byrd-Hagel Resolution in 1997, which rejected the Kyoto approach and called for an agreement that would include not only industrialized countries, but the large emerging economies as well. That is precisely what the Paris Agreement has finally delivered!

Will the U.S. Remain Part of the Process?

This is a pivotal moment.  President Trump’s recent executive order in which he laid out his plans to roll back much of the Obama administration’s climate policy, was silent on the Paris Agreement, reportedly reflecting disagreements among the President’s closest advisers.

During the campaign last year, the President said he would “cancel” the Paris Agreement.  But because it has already come into force, under its rules, any party must wait three years before requesting to withdraw, followed by a one-year notice period.  The United States is part of the agreement for the next four years. Any White House announcement of pulling out of the pact will have no direct effects for this Presidential term.

In theory, the President could try to bypass that four-year delay by taking the one-year route of dropping out of the overall UNFCCC — signed by President George H.W. Bush and ratified by the Senate in 1992. But that could require another two-thirds vote of the Senate, would be challenged in the courts, and would be unwise in the extreme, given that the U.S. would then be the only one among 197 countries in the world not to be a party to the Climate Convention. At a time when the United States wants cooperation from a diverse set of countries around the world on matters of national security, trade, and a host of other issues, it would be counter-productive in the extreme to willingly become an international pariah on global climate change.

Key Support Inside and Outside the Administration

Fortunately, key voices in the Administration have argued for remaining in the Paris Agreement. Secretary of State Rex Tillerson has stated that it is better for the U.S. to be at this table of ongoing negotiations. More broadly, Secretary of Defense James Mattis said in Congressional testimony that he views climate change as a national security threat.

Remarkably, support for the Paris Agreement is broad-based within U.S. private industry – from electricity generators such as PG&E and National Grid, to oil companies such as BP, Chevron, ConocoPhillips, Exxon-Mobil, and Shell, mining companies such as Rio Tinto, and a very long list of manufacturers, including giant firms such as General Motors. Even some of the largest coal producers, such as Arch Coal, Cloud Peak Energy, and Peabody Energy, have told the President about their support for the U.S. remaining in the Agreement. This broad support is due to a simple reality – leaders of successful businesses make decisions not on the basis of ideology, but based on available evidence.

True enough, there is also opposition from some especially vocal coal industry executives, and the President seems to have shaped his domestic climate policies around their interests, with his repeated pledge to “bring back coal.” But the job losses in coal mining over the past decades have been due to technological change (increased productivity) in the coal sector, and more recently by low natural gas prices, not by environmental regulations (particularly not by regulations – such as the Clean Power Plan – that have not even been implemented).

The Paris Agreement Provides Flexibility

The U.S. could stay in the Paris Agreement, and seek to revise the Obama-era numerical target of a 26% reduction in emissions below 2005 levels by 2025, an approach recommended by North Dakota Republican Representative Kevin Cramer. However, by 2016, energy-related emissions were already down by 14% below 2005, so it is not clear that the existing pledge even needs to be re-assessed. Also, state climate policies in California, Oregon, Washington, and the Northeast will remain in place, and likely be strengthened. And more than half of all states have renewable energy policies; just since election day, the Republican governors of Illinois and Michigan have signed legislation aimed at increasing solar and wind generation. At the Federal level, the important tax credits for wind and solar power continue to receive bi-partisan support in the Congress.

Putting it All Together

In summary, climate change is a serious threat, which requires international cooperation because of its global commons nature.  After twenty years of negotiations, the path-breaking Paris Climate Agreement, with its exceptionally broad participation, is the answer to long-standing, bipartisan appeals, and provides an excellent foundation for progress.

The President cannot “cancel” the Agreement, and it would take four years for the U.S. to withdraw. Pulling out of the foundational United Nations Framework Convention on Climate Change might be quicker, but would be unwise in the extreme, jeopardizing U.S. relationships with countries around the world on a host of pressing issues, ranging from national security to international trade.

Fortunately, key voices in the Administration have argued for keeping the U.S. in the Paris Agreement, and support from the business community is exceptionally broad and deep. If necessary, the U.S. can seek to revise the specific U.S. pledge under Paris made by the Obama administration, while remaining a party to the Agreement. But given the pace of emissions reductions already achieved, combined with ongoing state and Federal climate policies, it is not clear that those targets need to be changed.

Having considered this diverse set of considerations that should bear upon this U.S. decision, we find the arguments for the country remaining in the Paris Climate Agreement to be compelling. The truth is that in the 47 years since the first Earth Day, much has been accomplished.  But much of that remarkable progress could be undone in the short span of 4 years or less. We are confident – or at least hopeful – that this will not happen.

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Ban Ki-moon was Secretary-General of the United Nations (2007-2016), and is the Angelopoulos Global Public Leaders Fellow at the Harvard Kennedy School.  Robert Stavins is the Albert Pratt Professor of Business and Government at the Harvard Kennedy School, and was Coordinating Lead Author of the Intergovernmental Panel on Climate Change.

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