Thomas Stephenson

Our country urgently needs a more balanced approach to the global warming
and climate change issue. On its own, it is a major policy problem, and it has also
come to dominate discussions over our country’s broader energy strategy. The
current, starkly contrasting characterizations of the global warming and climate
change problem and the solutions proffered by the polar opposites in the debate
are neither accurate nor constructive as we strive to achieve a more sane policy
approach to the issue.
In the current political environment, we can divide the global warming controversy
into three areas of debate: (1) the human contribution to global warming, climate
change, and the state of climate science, (2) the expected social and economic
impacts of global warming–induced climate change, and (3) what to do about
it. Each important element is addressed below. In our view, however, the most
promising path forward lies in recognizing that the position one takes on any
one of these three elements need not actually dictate one’s views on the others.
Despite today’s political difficulties then, and perhaps surprisingly, our Task Force
on Energy Policy at the Hoover Institution finds good reason to be cautiously
optimistic that progress is being made and that good technology and policy options
still remain.
Climate Change Science
Many who minimize the impact of rising CO2
 emissions in precipitating global
warming and warming-induced climate change take the not unreasonable position
that correlation is not causation. It is generally accepted that CO2
 emissions have
increased significantly in recent decades. It is also fairly apparent, unless you use
some precise and limited measurement periods, that we have seen significant
warming around the globe in the last century. All one needs to do is observe what
has happened in the Arctic Ocean or to many glaciers around the world in recent
decades to conclude that the globe is warming. What is in dispute among some
is the extent to which this warming of the globe is primarily due to the increase
in human CO2 emissions and how that linkage may play out into the future.
Unfortunately, some overreaching in the UN’s Intergovernmental Panel on Climate
Change (IPCC) 2007 Working Group II report on global warming’s climate impacts,
although just a small part of the overall science, did not help the public debate
and only hardened the positions of global-warming skeptics.
The science on this issue improves each year, though uncertainty does remain.
Part of the problem in reducing the error bars to characterize the causal
relationship between CO2 emissions, global warming, and long-term climate change
is that the evidence depends in no small part on counterfactual reasoning, complex
modeling/simulation schemes, and understanding complicated logic theory. Our
own conclusion, after viewing the physical evidence mentioned above and listening
to a broad cross section of well-regarded scientists, is that the globe is warming
and, at least in part, that that warming is undeniably due to the increase in human
CO2 emissions. In turn, this warming is likely to lead to broader long-term changes
in the global climate. There is no other reasonable explanation for what has
transpired, solar cycles or whatever. It is important that we continue to study the
issue, but in our judgment the current scientific knowledge here is strong.
Climate Change’s Human Impacts
There are also questions over the social and economic impacts, both positive
and negative, of a changing climate. Whatever the degree of the causal relationship
one accepts between human CO2 emissions and climatic changes, it is worth
considering both the potential extent and the regional or economic distribution
that such impacts would have if they came to pass. Many serious attempts have
been made to model this; the results are of course uncertain given the enormous
complexities of making long-term forecasts not just on environmental but also
on social systems. Taken together, however, they suggest that the net effect of
climate change on national economies, human health, and the environment would
be negative, ranging from benefits in some areas to substantial costs in many
others. The underlying intuition here is that once a society has adapted to specific
environmental conditions, any rapid external change in those conditions will incur
adjustment costs. The global climate has certainly changed throughout human
history, but the rate has generally been slower—and the global population and
economic exposure smaller—than is the case today.
Given the uncertainty on this complex issue, one approach to thinking about
potential climate impacts is to employ the insurance policy framework advocated
during the Reagan administration with regard to the Montreal Protocol. Not
everyone agreed with the scientific reasoning that human chlorofluorocarbon (CFC)
emissions could deplete the global ozone layer. But the general consensus was
that if such emissions were to deplete atmospheric ozone, the results could be
catastrophic. Even with less than 100 percent certainty that CFCs were harmful—
that is, if the skeptics were in fact right—it would, given the potential impacts, be
worth thinking about the best ways to switch to an alternative. The concept of a
reasonably priced insurance policy was broadly accepted as a prudent approach
to mitigate the potential consequential risks on an international basis. Similar
reasoning seems applicable today with regard to our current best understanding
of the potential dangers of CO2
What to Do?
On the question of what to do about climate change, ours is a realistic approach.
We agree with most scientists who have seriously studied the issue on the causal
relationship between human CO2 emissions and a changing climate, and we also
accept that it would be preferable to avoid the broad impacts that would likely
result were global climate change to occur rapidly. Reaching such a conclusion,
however, does not lead us to align with the global-warming alarmists who want
us to precipitously abort our use of fossil fuels. To do so in the United States
using current technology would be economically disastrous domestically and,
on a worldwide basis, environmentally inconsequential. Climate change concerns
should be an important input to our energy policies, not an overriding determinant.
Important steps, however, can be taken—and, in some cases, already have
been taken—to reduce the amount of CO2 emissions released into our domestic
atmosphere/environment. This should give hope to those who despair at our
ability to address constructively the climate change issue without unacceptably
compromising our economy or national security.
We have already seen marked progress in recent years as the result of the
significant transition from dirty coal to natural gas–powered generation facilities
and a dramatic increase in energy-efficiency practices throughout our economy.
The transition from high-carbon-content coal to less-carbon-intensive natural gas
has been driven in no small part by this country’s determined entrepreneurial
efforts to access plentiful unconventional gas resources in multiple locations
around the country using hydraulic fracturing and horizontal drilling techniques.
A number of small companies have built on the research and development
investment in US corporate and public ledgers to enhance and employ the
fracking technologies that have dramatically increased our accessible natural gas
resources, driving down prices and reducing the cost of natural gas relative to coal.
Natural gas is rapidly becoming a wonderful transition energy source from fossilbased
to renewable fuels. Meanwhile, energy conservation and efficiency efforts
are exploding throughout the public and private sectors, driven in part by the
economic benefit of reduced costs and in part by mandates. California, for example,
offered an early demonstration that growth in individual electricity use could be
reduced without compromising comfort or economic performance. Today, similar
efficiency efforts deployed under a principle of a positive benefit-to-cost balance
have been taken up in most states around the country, with good results. The
dramatic improvement in the fuel economy of new vehicles during the past decade
without unacceptably compromising performance, safety, or individual choice is
another success most consumers appreciate.
It is important to recognize, however, that, even as we moderate our CO2 emissions,
we still must maintain and continue to improve on our existing energy systems
and accumulated know-how, both of which are the best in the world and keep
our lights on and wheels turning. A broad perspective is useful. Renewable
energy—alongside other low-carbon energy such as nuclear and hydropower—
is an appropriate longer-term goal from both an environmental and an economic
perspective, but until installed costs are further reduced and technologies are
available to better deal with the intermittency issues of solar and wind-produced
power, we need the lower cost and reduced carbon content that natural gas
Attacks on the fracking of shale gas from a safety perspective ignore the full context
of our current energy transition. Legitimate issues exist regarding the appropriate
fracking safety procedures to address methane release, surface impacts, water
consumption and contamination, and earthquake precipitation. These are not good
reasons, however, to ban fracking, but rather issues that are appropriately drawing
scrutiny as to what safety procedures need to be implemented and who should have
the regulatory responsibility to enforce compliance. Numerous experts have looked
into these issues, including university researchers and respected environmental
groups such as the Environmental Defense Fund (EDF), and concluded that the
problems are manageable with appropriate diligence. The importance of the role
that natural gas can play as a transition fuel both domestically and worldwide
demands that we make every effort to find reasonable solutions to the abovementioned
issues. Progress in doing so is overall encouraging, though not without
periodic setbacks.
It is clear, however, that even given the above legitimate environmental concerns,
the expanded availability of natural gas today is saving lives by displacing coalfired
power generation, the local and regional air pollution from which leads to
more than ten thousand statistical lives lost each year in this country alone.
Each decade, more than half as many Americans die from coal-related air pollution
as are employed in the coal extraction industry, from miners to executives. Coal
is an exceptional resource in terms of its sheer energy content and abundant
availability in this country. But the way we use coal today is irresponsible. New
coal technologies may yet give us better use options, and we should sustain
support for such research, given the magnitude of a potential payoff. Until then,
the resource will be safe in the ground. Getting off dirty coal is not a simple or
easy transition for the country, but it is one that can be made in a fair way, given
the numerous net benefits in doing so—a transition substantially enabled by
our newfound natural gas supplies.
Similarly, the current debate about granting approval for the Keystone XL
pipeline to transport Canadian crude oil to our Gulf Coast is a case in point on
the detrimental effect of symbolic political posturing around climate change
strategy. The aggressive efforts of the green lobby to kill the XL pipeline make
little economic or environmental sense. The Canadian oil sands will be drilled. If
the oil is not transported by pipeline or other less-safe surface modalities to our
Gulf Coast for processing, it will be piped to the Canadian Pacific coast and shipped
from there to China or elsewhere in Asia, where the rapid rate of industrialization
is already overwhelming the contributions that we or other developed countries
have made on CO2 emissions here at home. If that happens, all that will have
been accomplished by anti–fossil fuel extremists is to ensure that the economic
benefits of refining this crude will accrue to non-US companies with no net
worldwide reduction in aggregate CO2
 emissions. Furthermore, from a national
security perspective, a barrel of oil that we do not receive from Canada is, in
effect, a barrel of oil that will come to us through the Strait of Hormuz or OPEC
An Energy Technology and Policy Strategy
Let’s return to how we can bring about a more constructive debate on the subject
of climate change, one not driven by extremists at either end of the spectrum.
Today, more preexisting emotions and values are tacitly carried into political
posturing around the climate issue than most participants likely realize. For now,
we are unlikely to convince those who want our governments, federal, state, and
even local, to ban fossil fuels immediately or the global-warming science skeptics,
who believe that CO2 emissions have no demonstrable negative impact on our
climate, that there is a more balanced policy approach to be achieved.
Therefore we suggest to the skeptics that good global warming policy need not
require expensive command-and-control government regulation. To the alarmists
we say that global-warming science should not be an opportunity to impose
broader—and potentially irrelevant—political and social values through favored
policy instruments. To reach a broad consensus of those not positioned at polar
opposite ends of the spectrum, we need an important commonsense discussion
about the appropriate role of government in addressing the challenges of climate
change. Right now such a discussion is certainly not taking place. Part of the
problem is a bitterly divided and overly partisan atmosphere in Congress, but
part of the problem is also an absence of leadership and management by the
administration. Compromise is not a part of the current lexicon of Washington, DC.
The proposed use of Environmental Protection Agency mandates, for example, has
only exacerbated the political and policy divide and hardened positions on both
sides of the aisle. We desperately need leadership from somewhere to move us
toward a more balanced approach.
Energy Research and Development (R&D)
One area of general bipartisan agreement is that the federal government has
an important role to play in helping provide sustained funding for research and
development of new technologies for the transition to a non-fossil-fuel-basedenergy
economy and environment. Some of this R&D is going on in national
government laboratories, but much is also being conducted in university research
labs and in the private sector, both in large company laboratories and in smaller
entrepreneurial companies, including start-ups. Where there is disagreement
between the right and left regarding the proper role of government in this process
is when government gets involved in the commercialization phase of technology
development. To quote former secretary of the Treasury and Obama’s national
economic adviser, Larry Summers, “government makes a crappy venture capitalist.”
Let the private sector do what it does best. Nothing will have a greater impact
on our world’s ability to transition away from a fossil-fuel-based economy than
creative technology development. As close observers of energy-related activities
at both Stanford and MIT, we are very optimistic about the creative work being
done in the laboratories of those two leading research universities. Some of the
university research is government funded, but as much comes from the private
sector. We are convinced that we will continue to come down the cost curve in wind
and solar power equipment and produce battery solutions to deal with the storage
issues associated with the intermittencies of wind and solar for power generation.
We are equally confident regarding battery technology progress to address the
limited range of electric vehicles now available and thus further decarbonize
our transportation sector. Meanwhile, research continues to push the boundary
of energy consumption performance for new lighting, electronics, industrial
processes, and vehicles. Also encouraging is that large oil and gas companies are
doing important research in their laboratories and in the field both to reduce the
carbon content of the fuel mix and to ensure that new fossil supplies are available
and affordable as long as they remain necessary.
Defense Energy
The US military has emerged as a natural platform to both drive and rapidly adopt
new energy technologies to improve operational readiness and reduce energy
bills—both of which are praiseworthy. Combined, defense-wide spending in 2012
on energy research, development, testing, and demonstration was $1 billion,
though even this was but 1 percent of the department’s total innovation budget.
Where there is overlap with civilian needs, technologies that may still be near
at hand for commercial markets may already be deployed and useful on military
bases and in forward-deployed locations. Other military energy innovation may be
more narrowly targeted at a particular tactical edge. There is a strong precedent
here. The US military—from R&D to procurement and a massive ability to scale
and deploy technology—has long been an early supporter of game-changing
technological innovations, including nuclear energy, Internet telecommunications,
global-positioning systems, and solid-state transistors.
One advanced energy opportunity that may be well suited for defense needs are
new, so-called small modular nuclear reactors (SMRs) that could operate passively
and at the scale of a military base, rather than an entire city. This new generation of
small modular reactors looks to have promise in replacing the aging and extremely
capital-intensive, large-scale nuclear infrastructure in the United States and could
be exported abroad or to remote regions such as the Arctic. Key regulatory issues
on safety and staffing need to be arrived at for SMRs to have a chance in the US
electricity market, and first-of-a-kind costs are expected to be prohibitive for
civilian grid deployment by a conventional utility. Piloting this technology at the
Department of Defense to gain experience could help address both issues.
A Level Policy Playing Field
Another area where government has an appropriate role to play in moving the
United States away from a fossil-fuel-based economy is creating a more level
playing field for competing energy technologies. Americans believe in level playing
fields, and one can make a strong intellectual case that the marketplace needs
some help in creating such a playing surface among competing fuels by pricing
the externality of carbon. For those who strongly believe that CO2 emissions are
precipitating global warming and accompanying climate change, this is an easy
case to make. For the global-warming skeptics, however, a more compelling case
needs to be made. One approach is to return to President Reagan’s CFC insurance
policy approach, where just the chance that the potential damages may occur
could be enough to warrant undertaking prudent costs today to avoid them,
without wrecking the economy or unduly increasing the government’s footprint.
In doing this, let us consider how new, and better, government policy to create a
level playing field could replace the often burdensome tax and regulatory maze
that surrounds us.
Today, much of US climate change regulation occurs at the state level: renewable
and energy-efficiency portfolio standards, utility revenue decoupling, energyefficient
building codes or retrofits, rooftop solar panel and energy-efficient
appliance subsidies, customer financing mechanisms, thermal power plant
licensing, oil and gas permitting, electricity and fuel pricing and taxes, alternative
fueled-vehicle deployment mandates, even low-carbon fuel standards. Often
responsibility for and the genesis of such programs are spread across various state
regulatory bodies, such as utility, energy, or environmental commissions, plus
the legislature and even the governor’s office. Those state policies are overlaid by
haphazard federal investment and production tax credits, accelerated depreciation
schedules, and interstate grid regulations. On top of that, localities retain
significant permitting jurisdiction. In discussions with state energy regulators, 
utilities, and grid operators in California and other states, we have seen firsthand
how some policies and programs seem to work well, whereas others may do
more harm than good: in California, for example, the misguided Low Carbon Fuel
Standard (LCFS) seeks to mandate advanced technology into existence alongside
a political, rather than technological or market-compatible, timetable. State energy
programs everywhere could benefit from improved internal coordination and a
strategic vision that moves beyond crisis response or short-term political tactics
to reduce regulatory risk in the energy investment landscape.
One attempt to create a more cohesive level playing field by directly pricing the
externality cost of carbon has been the cap-and-trade systems employed in
the European Union and here at home in several states, including California. So
far, however, the results of these cap-and-trade systems have been anything but
impressive. In Europe, high volatility and low emission-permit prices make it
hard to argue that the cap-and-trade program has had a strong additional impact
in reducing overall CO2 emission levels, reflecting the fact that these extremely
complex and subtle financial products lend themselves too easily to mischief,
manipulation, or simple miscalculation in their implementation. In California, given
the extensive green regulatory mandates already in place and that continue to
be layered on, perhaps the largest impact of the cap-and-trade system has been
the creation of a multibillion-dollar slush fund that will likely be used to fund illconceived
or vanity programs such as the uneconomic high-speed rail system.
What we and a number of our colleagues believe is that a better way to price
the externality of carbon and create a more level playing field is to pass a
comprehensive and transparent national revenue-neutral carbon tax (RNCT)
that would displace much of the existing energy and environmental regulatory
maze. A tax on carbon will obviously raise the cost of fossil fuels relative to
noncarbon-based fuels such as nuclear and renewables. Republicans will never
support a tax that is simply viewed as another source of revenue to support the
liberal, government-centric agenda and contains all the elements of fiscal drag.
Depending on where the tax is assessed in the development and delivery chain
and how revenue neutrality is accomplished, there will undeniably be winners and
losers, with the biggest loser being the coal industry. The net result, however, will
be a more level playing field between carbon and noncarbon-producing forms of
energy with, in all likelihood, a net positive impact on the economy from putting
RNCT dollars back into consumers’ pockets, be that through a straight dividend or
individual and corporate tax breaks. Some form of national border tariff adjustment
would likely be needed to prevent foreign companies who do not impose a carbon
tax from attaining a competitive advantage and undermining the desired impact of
the RNCT. The most likely scenario in which we as a nation might have a sensible
conversation about adopting a RNCT would be in the context of major tax reform.
Strong advocates on both sides of the aisle urge major tax reform, but to date there
seems to be little discernible agreement between the parties on what constitutes acceptable reform. We need to be ready with a thoughtful proposal if and when
the legislative opportunity arises. The Canadian province of British Columbia,
though not a perfect analogue for the United States, has seven years’ experience in
operating a straightforward revenue-negative carbon tax (more is actually paid out
each year in tax breaks and dividends than is collected), with good economic and
environmental results and broad political support. That example makes it clear that
we should be looking to our North American neighbors rather than to Europe for
advice as we consider our options at home.
Beyond the subjects of sustained government support for R&D, defense
energy, and the imposition of a playing-field-leveling RNCT, there needs to be
a conversation about the appropriateness and extent of various government
mandates and subsidies regarding energy sources and uses. Conservatives tend
to be skeptical of market-distorting interventions by government, while liberals
are frequently quick to advocate and employ government-centric solutions. The
ubiquitous law of regulatory capture sees fertile ground in the contested pitch.
The corn ethanol disaster is one high-profile intervention by government in
which the law of unintended consequences has been on full display: mandating
amounts of ethanol to be blended into motor fuels and then imposing tariffs
on Brazilian sugar to protect domestic corn producers. In addition to being
unachievable from a production standpoint, it drove food prices upward to the
detriment of consumers, particularly those at the low end of the economic ladder.
On the other hand, many, even on the right who are not total carbon impact
skeptics, would probably acknowledge that the 1975 federal legislation imposing
corporate average fuel economy (CAFE) standards’ mandating fuel efficiency
performance for new vehicles have been at least reasonably constructive in
lessening national dependence on fossil fuels, with attendant environmental
benefits. Not surprisingly, mandates issued down the chain of command in the
military or in large companies do not meet the same level of resistance that such
market-altering directives will be subject to when imposed by governments. On
balance, however, it is probably prudent to say that, if conservatives are to accept
the imposition of a national carbon tax, even one that is revenue neutral, there
will need to be some accommodation regarding the extent to which the federal
government can intervene in the free market. The overall benefits to the country of
moving in this direction should create ample opportunity for policy negotiations,
given the willingness of each side to address the other’s political concerns.
An important aside is how to deal from a policy perspective with the fact that the
bulk of current and looming CO2 emission challenges are in the developing world
and not here at home. The Kyoto Protocol was ineffective in trying to force global
agreement on and compliance with universal emission goals; individual country
situations and aspirations are too varied to lend themselves to a top-down global
accord. It is one thing to have a concrete and achievable domestic agenda to then
discuss in a bilateral or multilateral forum, but it is another to focus on international
targets before anyone has a clear idea of what to do to get there. For example, the
Montreal Protocol’s global agreement to phase out the use of chlorofluorocarbons
was predicated on a technical R&D commitment by the DuPont Company to
develop and supply to its customers a drop-in replacement product within five
years. Without that practical course of action, there would have been no accord.
Going forward, we will be better off by first focusing on what we can make progress
on at home and then trying to reach bilateral agreements with other major
international polluters in which their selfish interests might somehow be aligned
with ours. Ideally, we can use strategic collaboration to leverage each country’s
actual needs and technical abilities. For example, China knows that it has a major
problem with air pollution in major cities and that dependence on dirty coal for
power generation is the principal culprit. Perhaps we can help China figure out
how to access its substantial shale or offshore gas resources through our more
advanced capabilities in fracking or other advanced energy technologies. Similarly,
India has long-standing interests in the broad development of affordable nuclear
power that overlap with our own; in this area the United States has particular
technical, business, and regulatory capabilities and thus bottom-up cooperation
should be encouraged. As always in such dealings, protecting intellectual property
will be a challenge for participating US companies. But there should be some
win/win situations in this arena that do not involve unilaterally weakening
international trade competitiveness or adopting expensive “boutique” firstof-a-kind
carbon regulations at home that have little chance of being taken up
among major polluters abroad.
Climate Change in Context
The climate change problem is relatively new, far reaching across our energy
systems, and vexing—if not impossible, as we have suggested here—to address.
But it is important to remember that climate change is not the only important
energy issue we face.
Even as total energy resource availability seems to have improved in North America
and elsewhere, energy security and reliability are more important than ever. A
short disruption in electricity supply that may have been tolerable in years past
now wreaks havoc in our real-time, information-centric economy. In addition to
accidents and weather events, we now routinely see new vectors of attack on our
energy infrastructure, both cyber and physical in nature. Beyond this defensive
mind-set, it is worthwhile to consider how our energy systems and services can
better meet our needs though improved performance, affordability, diversity, and
customer choice. Billions globally continue to suffer from insufficient energy access.
On the environmental front, we have not solved the problem of local pollution,
even though local pollution’s negative health impact today exceeds even many of
the most pessimistic forecasts of future climate change damages. Finally, energy
remains an important part of our national economy, not just for its impact on our
pocketbooks but also as a major economic sector in itself and thus a source of
international corporate competitiveness or even national political relationships.
In consideration of these broader goals, our analyses to date suggest that
technologies and policies to support the development of a more distributed
energy system—with energy produced closer and better matched to its point of
consumption—can help with both issues and the climate change problem as an
important part of it. There may be other good approaches as well. But any longterm
energy strategy needs to take full view of these diverse social priorities.
In sum, this discussion advocates a more balanced approach to the environmental
security issues we face as a country. Many would suggest, however, that right
now it is a pipe dream that such an outcome is achievable in today’s highly
contentious political environment. That is probably true, but one never knows
when unanticipated events will unfold in ways that allow the unlikely to become
the feasible. Those of us advocating a more balanced approach to energy and
environmental policy need to be ready when such opportunity might unexpectedly
present itself.