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Assessing California's Climate Policies—The 2022 Scoping Plan Update
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AN LAO REPORT
Assessing California’s Climate Policies
The 2022 Scoping Plan Update
GABRIEL PETEK | LEGISLATIVE ANALYST | JANUARY 2023
SUMMARY
2022 Scoping Plan Update Identifies Pathway to Long-Term 2045 Greenhouse Gas (GHG) Goal.
California has established statutory goals for reducing statewide GHG emissions—down to at least
40 percent below the 1990 level by 2030, and to at least 85 percent below the 1990 level by 2045. The
California Air Resources Board (CARB) must develop a plan for meeting these goals, and update this Scoping
Plan every five years. In its recently adopted plan, CARB selects its preferred pathway to meeting the state’s
long-term 2045 GHG goal, and adopts a new, more ambitious goal for 2030 (48 percent reduction below the
1990 level).
Plan Lacks a Clear Strategy for Meeting 2030 GHG Goals. In this brief, we evaluate CARB’s plan for
meeting the state’s 2030 GHG goals. Despite the significant reductions needed to meet these goals, CARB’s
plan does not identify which specific policies it will implement. For example, the plan is unclear regarding
how much the state will rely on financial incentives, sector-specific regulatory programs, or cap-and-trade.
Rather, the plan’s estimated reductions are driven primarily by assumptions developed by CARB, without
specifying how those assumed outcomes might be achieved. The lack of focus on policy options is a missed
opportunity that has important ramifications for California’s overall GHG reduction efforts, including:
• The lack of specificity likely will lead to delayed action, as it defaults to state departments to identify
necessary implementation steps. This increases the risk that the state will not meet its statutory
2030 GHG goal, much less CARB’s more ambitious target.
• If the state needs to adopt policy changes in a relatively short period of time to meet its goal, this could
be costlier and/or disruptive for private businesses and households.
• The plan does not provide the Legislature with sufficient information—such as about cost-effectiveness,
distributional impacts, or other environmental impacts—to evaluate the merits of new policies that might
be needed to meet the 2030 goal.
• Failing to develop a credible plan to meet statewide GHG goals could adversely affect California’s ability
to serve as an effective model for other jurisdictions or demonstrate global leadership.
Cap-and-Trade Program Is Not Currently Positioned to Close 2030 Emissions Gap. CARB indicates
that it will evaluate the cap-and-trade program in 2023 to determine whether changes are needed to help
meet its 2030 goal. We find that cap-and-trade is not currently positioned to ensure the state meets it
statutory 2030 GHG goal, much less CARB’s more ambitious target. In short, the program is not stringent
enough to drive the additional emission reductions needed because there will be more than enough
allowances available for covered entities to continue to emit at levels exceeding the 2030 target. This could
also lead to relatively low allowance prices, as well as reduced and volatile cap-and-trade auction revenue.
Recommend Legislature Require CARB to Clarify 2030 Plan and Consider Cap-and-Trade
Changes. We recommend the Legislature direct CARB to submit a report to the Legislature by July 31, 2023
that clarifies its plan for reducing GHG emissions to meet the 2030 statutory goal. We also recommend the
Legislature consider changes to the cap-and-trade program to address concerns about program stringency.
Potential modification options include: reducing the supply of allowances issued in future years, limiting the
use of offsets (credits generated from GHG reductions taken by entities not covered by cap-and-trade), and
extending the program beyond 2030.
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INTRODUCTION BACKGROUND
In this brief, we describe and assess the Legislature Has Set Various GHG Goals.
California Air Resources Board’s (CARB’s) 2022 The Legislature has adopted three successive
Scoping Plan Update (hereafter Scoping Plan)— statewide GHG emission reduction goals (also
the state’s primary plan for how it will reduce its known as targets):
greenhouse gas (GHG) emissions. Specifically,
• 2020. Chapter 488 of 2006 (AB 32, Núñez/
our brief includes: (1) background on statewide
Pavley) established the goal of limiting GHG
GHG emissions and emission reduction goals,
emissions statewide to the 1990 level by 2020.
(2) an overview of the 2022 Scoping Plan Update,
• 2030. Chapter 249 of 2016 (SB 32, Pavley)
(3) an assessment of CARB’s plan to achieve
extended the limit to at least 40 percent below
the state’s 2030 GHG reduction goal, and
the 1990 level by 2030.
(4) recommendations for legislative next steps.
• 2045. Chapter 337 of 2022 (AB 1279,
This brief was developed pursuant to Chapter 135
Muratsuchi) extended the limit to at least
of 2017 (AB 398, E. Garcia), which requires
85 percent below the 1990 level by 2045.
our office to report annually on the economic
Assembly Bill 1279 also established a goal of
impacts and benefits of the state’s 2020 and
zero net carbon emissions by 2045, commonly
2030 GHG goals.
known as carbon neutrality. (For more detail
Focus of This Brief Is on 2030 GHG Goal.
on carbon neutrality, see the box below.)
As we discuss in more detail later in this brief,
the Legislature has adopted specific statewide
GHG emission goals for 2020, 2030, and 2045.
We focus this analysis on CARB’s plan for achieving What Is Carbon Neutrality?
the 2030 goal. The main reasons we choose to
Carbon neutrality is when the amount
focus on the 2030 goal, rather than the long-term
of greenhouse gasses (GHGs) being
2045 goal, are:
added to the atmosphere (sources)
• This brief is submitted pursuant to our AB 398 equals the amount of GHGs that are
statutory requirement which directs our office being removed from the atmosphere
to assess the impacts of achieving the state’s (sinks). Sources of GHGs include carbon
2030 GHG goal, but does not reference the dioxide emissions from fossil fuel
2045 goal. combustion and methane emissions
from agricultural activities—all of
• The 2030 goal reflects the state’s next
which are part of the state’s emission
significant GHG reduction benchmark
reduction targets described in this
and a key interim step towards putting the
brief. However, carbon neutrality also
state on track to try to meet its long-term
incorporates other sources as well as
2045 GHG goal.
sinks that are not typically counted
• Economic impacts and benefits depend
as part of state emissions, such as
heavily on technological advancements of
net changes in the amount of carbon
various GHG-reduction technologies and
in forests and the amount of carbon
changes in broad economic conditions, both
dioxide that is removed from the
of which are difficult to forecast over long
atmosphere and stored underground.
time horizons. While even evaluating potential
These types of activities are also known
environmental and economic impacts in 2030
as carbon dioxide removal.
is challenging, the effects in 2045 are subject
to far greater uncertainty.
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State Met 2020 Target Early,
Figure 1
but 2030 and 2045 Goals More
Ambitious. As shown in Figure 1,
Summary of Statewide GHG Targets
statewide GHG emissions have
Millions of Metric Tons of Carbon Dioxide Equivalent
decreased in recent years—
dropping below the 2020 target
600
several years ahead of schedule.
However, emissions would need
to decline much faster in order to
500
meet the 2030 and 2045 targets.
Actual Emissions
1990 Emissions
For context, from 2010 to 2019,
by 2020
emissions declined by about 400
1 percent annually. In contrast,
meeting statutory statewide
emission reduction goals would 300
require average annual reductions
40 percent below
of 4 percent from 2019 to 2030, and 1990 level by 2030
9 percent between 2030 and 2045. 200
Notably, statewide emissions
declined substantially in 2020—
100
mostly due to reduced driving
85 percent below
and economic activity in the initial 1990 level by 2045
months of the pandemic. However,
preliminary data show that 2010 2015 2020 2025 2030 2035 2040 2045
emissions subsequently bounced
GHG = greenhouse gas.
back in 2021, suggesting that much
of the reduction was temporary.
• The range of projected GHG emissions
Similarly, although a potential
reductions that result from the measure.
future period of reduced economic activity—such
as a recession—likely would result in another dip • The range of projected air pollution reductions
in emissions, temporary changes in economic that result from the measure.
activity alone are unlikely to drive the magnitude of • The cost-effectiveness of the measure.
emission reductions needed to meet the 2030 goal,
much less the sustained reductions needed to meet OVERVIEW OF 2022
the longer-term 2045 target.
SCOPING PLAN UPDATE
CARB Required to Develop Scoping Plan
After conducting a series of workshops over
for Meeting Statewide GHG Targets. State law
the last couple of years and issuing a draft plan in
requires CARB to develop a Scoping Plan and
May 2022, CARB formally adopted its final 2022
update it at least every five years. The Scoping Plan
Scoping Plan Update in December 2022. In this
is meant to identify CARB’s strategy for achieving
section, we provide an overview of the plan.
the statewide GHG targets. Statute requires that
the plan must, among other things, identify and Plan Highlights Several Potential Scenarios
make recommendations on measures to facilitate and Selects Preferred Path. As a starting point,
the achievement of the maximum technologically CARB estimates emissions under a “Reference
feasible and cost-effective reductions of GHGs. Scenario,” which is meant to reflect what future
In addition, for each emissions reduction emissions would be under current state practices
measure identified in the plan, it must identify the and policies (excepting any potential emission
following information: reductions from the state’s cap-and-trade program).
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As shown in Figure 2, the board
estimates that under the Reference Figure 2
Scenario, the state would fail to
State Would Meet GHG Goals
meet both its 2030 and 2045 GHG
Under CARB's Scoping Plan Scenario
goals. CARB then models four
Millions of Metric Tons of Carbon Dioxide Equivalent
different alternative scenarios—
each making different assumptions
600
about how and when the state
reduces emissions. To model the
four alternative scenarios, CARB
500
makes various assumptions about
Actual Emissions
household behavior—such as 1990 Emissions
by 2020
per capita vehicle miles traveled
400
(VMT)—and technology adoption—
such as how many electric heat
Reference Scenario
pumps are installed in buildings,
300
how many refineries install carbon
40 percent below
capture and storage (CCS), and 1990 level by 2030
how much carbon dioxide removal 200
is deployed. Alternatives 1 and 2
Scoping Plan Scenario
would achieve carbon neutrality by
2035, whereas Alternatives 3 and 4 100
would achieve carbon neutrality in 85 percent below
1990 level by 2045
2045. Figure 3 summarizes some
of the key assumptions CARB used
2010 2015 2020 2025 2030 2035 2040 2045
to develop the four alternatives it
modeled in the plan. GHG = greenhouse gas and CARB = California Air Resources Board.
CARB selected Alternative 3—
also known as the Scoping Plan exclusively on effects in 2035 and 2045, with limited
Scenario—as its preferred modeling scenario information on the projected effects in 2030. (CARB
for taking actions to achieve the state’s GHG analyzes 2035 effects because Alternatives 1 and 2
emissions reduction goals. According to CARB, would seek to achieve carbon neutrality by 2035.)
this alternative most closely aligns with existing Identifies More Aggressive 2030 GHG
statute and executive orders, and best achieves Goal. As it relates to the 2030 goal, perhaps
the balance of cost-effectiveness, health benefits, the most significant change in the 2022 plan (as
and technological feasibility. Figure 2 displays compared to previous Scoping Plans) is that it
CARB’s projections for GHG reductions under this identifies a new GHG target of 48 percent below
Scoping Plan Scenario. As shown in the figure the 1990 level, compared to the current statutory
and discussed below, these projections assume goal of 40 percent below. (Hereafter, we will
that under this scenario, the state will be below its refer to the 48 percent reduction as the Scoping
statutory GHG target in 2030. Plan goal and the 40 percent reduction as the
Focuses on 2045 Goals. Most of the plan— statutory goal.) Current law requires the state to
including the modeling and analysis—focuses reduce GHG emissions by at least 40 percent
on the state’s long-term 2045 carbon neutrality below the 1990 level by 2030, but does not
goal. For example, under each alternative, CARB specify an alternative goal. According to CARB,
estimates GHG emission reductions, air pollution a focus on the lower target is needed to put the
reductions, and cost-effectiveness associated state on a path to meeting the newly established
with different groups of emission reduction 2045 goal, consistent with the overall path to
measures. However, these estimates focus almost 2045 carbon neutrality.
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Figure 3
Summary of Scoping Plan’s Four Scenarios
Scenario
Alternative 3
(Scoping Plan
Assumptions Alternative 1 Alternative 2 Scenario) Alternative 4
Reductions in per • 25 percent by 2030. • 15 percent by 2030. • 25 percent by 2030. • 10 percent by 2030.
capita vehicle miles • 30 percent by 2035. • 20 percent by 2035. • 30 percent by 2045. • 15 percent by 2045.
traveled
Adoption of light-duty • 100 percent ZEV sales • 100 percent ZEV sales • 100 percent ZEV sales • 100 percent ZEV sales
ZEVs by 2030. by 2030. by 2035. by 2040.
• Only ZEVs on road by
2035.
Changes to petroleum • Phase out all refining • CCS on majority of • CCS on majority of • CCS on majority of
refining by 2035. refineries by 2030. refineries by 2030. refineries by 2030.
• Declining production • Declining production • Declining production
in line with petroleum in line with petroleum in line with petroleum
demand. demand. demand.
Sales of electric • 80 percent by 2025. • 80 percent by 2030. • 80 percent by 2030. • 75 percent by 2030.
HVAC and water • 100 percent by 2030. • 100 percent by 2045. • 100 percent by 2045. • 100 percent by 2045.
heaters for existing • All buildings retrofitted • Appliances replaced • Appliances replaced • Appliances replaced
buildings to electric appliances at end of life. at end of life. at end of life.
by 2035.
Reductions in dairy • 1 percent to 2 percent • 1 percent decrease in • 0.5 percent decrease • 0.5 percent decrease
methane emissions decrease in dairy cow dairy cow population. in dairy cow in dairy cow
population. • 330 additional population. population.
• 750 alternative alternative manure • 210 additional • 210 additional
manure management management projects alternative manure alternative manure
projects by 2030. by 2030. management projects management projects
• No additional dairy • 420 additional diary by 2030. by 2030.
digesters. digesters by 2030. • 380 additional diary • 390 additional diary
• Enteric strategies • Enteric strategies digesters by 2030. digesters by 2030.
reduce emissions reduce methane • Enteric strategies • Enteric strategies
by 50 percent on emissions by reduce methane reduce methane
75 percent of total 50 percent on emissions by emissions by
operations. 75 percent of total 30 percent on 30 percent on
operations. 50 percent of total 50 percent of total
operations. operations.
Carbon dioxide • 22 million tons • 60 million tons • 75 million tons • 99 million tons
removal annually by 2045. annually by 2045. annually by 2045. annually by 2045.
ZEV = zero-emission vehicle; CCS = carbon capture and storage; and HVAC = heating, ventilation, and air conditioning.
ASSESSMENT OF PLAN Plan Lacks Clear Strategy for
TO MEET 2030 GOALS Meeting 2030 GHG Goals
Based on our assessment of CARB’s plan In this section, we assess how well the 2022
for reducing emissions by 2030—including both Scoping Plan Update positions the state to meet its
addressing the statutory goal and the newly 2030 GHG reduction goal. We find that the plan’s
identified Scoping Plan goal—we have two lack of specific policy strategies could result in a
primary findings: (1) the plan lacks a clear strategy number of negative implications.
for meeting the 2030 GHG goals and (2) the Meeting 2030 Goals Will Require Major
cap-and-trade program is not currently positioned Acceleration of Emission Reductions. Meeting
to close a 2030 emissions gap. the 2030 statutory goal for reducing GHG
emissions by 40 percent below the 1990 level
already would require the state to significantly
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accelerate its rate of emission reductions, relative to • Building Electrification. The plan assumes
historical norms. On average, the state has reduced 80 percent of new heating, ventilation, and
emissions by about 1 percent annually over the last air conditioning and water heater sales will
decade. As previously mentioned, meeting the 2030 be electric by 2030, in both residential and
statutory goal would require a 4 percent average commercial buildings. Under current policy,
annual reduction. However, as noted above, the CARB assumes 15 percent of sales will
Scoping Plan sets an even more ambitious target of be electric.
reducing GHG emissions by 48 percent below the
These assumptions are significant drivers of
1990 level. This would require a 5 percent average
the overall emission reductions the Scoping Plan
annual reduction from 2019 to 2030—an even
Scenario expects the state to achieve in 2030.
greater acceleration of existing trends. For context,
The plan does not, however, provide any clear
since 2000, statewide annual emissions have only
description of what types of policies will drive these
ever dropped by more than 3 percent twice:
changes. For example, it is unclear how much the
• A 6 percent reduction occurred from 2008 state will rely on financial incentives, sector-specific
to 2009. This was around the time of the regulatory programs, or cap-and-trade to achieve
Great Recession. Also, in 2009, CARB made these reductions. The current plan does not
some changes to the way it counts emissions provide any clear direction or roadmap for these
from electricity imports, which could have types of decisions. Instead, CARB indicates that
contributed to its calculated drop in emissions. an evaluation of all major programs will be needed
• A 9 percent reduction occurred from 2019 to assess their effectiveness and their specific
to 2020. This was during the first year of the GHG reduction objectives between now and 2030.
COVID-19 pandemic so it reflected many (The plan includes some estimated impacts of
temporary, rather than permanent, changes in adopting different technologies and behaviors
business and household behaviors. needed to meet the 2045 goal, but these do not
focus on specific policies that might be used to
Plan Lacks a Clear Description of What
meet the 2030 goal.)
Policy Approaches Will Be Deployed to Reduce
Lack of Clear Policy Approach Has Several
Emissions. Generally, the plan does not identify
Key Downsides. In our view, the lack of focus
which policies will be used to reduce emissions
on policy options in the Scoping Plan Update is a
in order to meet the 2030 targets (for either the
missed opportunity that has important ramifications
statutory goal or the Scoping Plan goal). Rather,
for California’s overall GHG reduction efforts.
the plan’s estimated reductions are primarily driven
The major downsides include:
by assumptions developed by CARB and the
third-party contractors who led the modeling effort, • Delayed Action Increases Risk That State
without specifying how those assumed outcomes Will Not Meet 2030 Goal. Without a clear
might be achieved. The assumptions for the policy approach articulated in the Scoping
Scoping Plan Scenario were selected to illustrate Plan, how—and whether—the state will meet
a scenario where the state meets its targets. the statutory 2030 GHG goal is unclear, much
For example, the plan assumes the state will make less how it will meet the more ambitious
the following changes: Scoping Plan goal. The lack of specific
direction means that state departments will
• VMT. The plan assumes a 25 percent reduction
need to spend additional time and effort to
in per capita VMT by 2030. In contrast, CARB
identify and evaluate what policy changes will
assumes continuing with current policies (the
be required to achieve the intended outcomes
Reference Scenario) would lead to a 4 percent
before they can even begin the process of
reduction in VMT by 2045.
adopting and implementing those changes.
• CCS. The plan assumes CCS will be
Overall, many of these efforts likely will take
installed on 70 percent of refineries by 2030.
years. Such a delay increases the risk that the
Under current policy, CARB assumes no CCS
state will not meet its 2030 goal.
will be installed on refinery operations.
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• Rushed Policy Implementation Could Be about 1 percent of global GHGs, the ultimate
More Costly. Even if state departments do success of its climate policies depends on
take subsequent actions to identify, evaluate, whether it spurs emission reductions in other
and adopt new or modified policies in order jurisdictions. For example, California might
to try to meet the ambitious 2030 targets, influence other jurisdictions by demonstrating
these policies would then need to achieve how to adopt and implement a plan to achieve
reductions in a relatively short period of time. ambitious GHG reduction goals. However,
A more rushed implementation time line could failing to develop a credible plan to meet
be costlier and/or more disruptive for private statewide goals could limit the degree to
businesses and households. which California can serve as an effective
• Limits Information Available for Key model for other jurisdictions. This could
Legislative Decisions. Different policy lead to California missing an opportunity to
approaches are likely to have varying expedite global progress on limiting the extent
associated advantages and disadvantages, of climate change.
including the magnitude of GHG reductions,
improvements in local air pollution, economic Cap-and-Trade Program Not Currently
costs, and how costs and benefits are Positioned to Close 2030 Emissions Gap
distributed across various groups. However,
In this section, we provide our assessment of
without a clearly articulated policy approach,
whether we believe the cap-and-trade program—
evaluating trade-offs associated with
as currently structured—can help ensure that the
specific policies used to meet the 2030
state meets its 2030 goals. We find that, although
target is difficult—thereby limiting the
the program can be a cost-effective way to
amount of information that the Legislature
achieve GHG goals, cap-and-trade is not currently
has available to make near-term budget and
positioned to make up for any significant shortfall in
policy decisions. Specifically, the plan lacks
emissions reductions from other programs.
information that the Legislature could use to
Scoping Plan Update Does Not Specify Role
evaluate the costs and benefits of a new policy
for Cap-and-Trade. The cap-and-trade program
that might be needed to meet the 2030 goal,
covers sectors and activities that represent
how its impacts would be distributed across
about 75 percent of statewide GHG emissions—
different households, and how it compares to
primarily emissions from transportation fuels,
alternative emission reduction measures. For
electricity, natural gas, and industrial activities.
example, if the Legislature were considering
In its 2017 Scoping Plan Update, CARB expected
whether to allocate funding for either providing
non-cap-and-trade programs to achieve roughly
rebates for electric heat pumps or for electric
half of the emission reductions needed to meet the
trucks, it would lack helpful information to
statutory 2030 annual target, with cap-and-trade
inform this decision, including the respective
making up the other half. Moreover, the 2017 plan
programmatic costs per ton of GHGs reduced,
then identified cap-and-trade as the state policy
how much each activity would reduce local
that would serve as a “backstop” to ensure the state
air pollution, and how the benefits of each
meets its target. That is, the plan explicitly stated
activity would accrue to different regions
that to the degree other policies collectively fell
or households.
short of meeting the state’s GHG reduction goals—
• Could Adversely Affect California’s Ability
sometimes referred as an emissions gap—the
to Demonstrate Global Leadership.
cap-and-trade program would reduce emissions
The lack of a clear plan might have other
further to make up the difference. In contrast, the
downsides that are more difficult to identify,
2022 Scoping Plan Update does not specify what
but nonetheless important for California’s
role cap-and-trade is expected to play in reducing
effort to encourage global action on climate
emissions. Instead, CARB indicates that the
change. Since California represents only
administration will submit a report to the Legislature
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by the end of 2023 containing potential suggestions additional emission reductions needed to close
on programmatic changes to ensure the program is a 2030 emissions gap. One key reason for this is
well-positioned to help the state meet its goals. because there will be more than enough allowances
Cap-and-Trade Can Be a Cost-Effective Way available for covered entities to continue to emit at
to Achieve GHG Goals… Economywide carbon levels exceeding the 2030 target. As we described
pricing policies, such as cap-and-trade, generally in our 2017 report, Cap-and-Trade: Issues for
have been found to be the most cost-effective Legislative Oversight, the program allows unlimited
approaches to reducing GHG emissions. In a banking of allowances from earlier years, which can
cap-and-trade program, covered entities face then be used to comply with more strict caps in
a choice to either (1) purchase allowances or later years. If a significant number of allowances are
offsets to be able to continue to emit, or (2) reduce “banked” in the earlier years, covered entities can
emissions. As a result, the program sends price then continue emitting GHGs in 2030 at levels that
signals to households and businesses to encourage exceed the state’s targets.
them to identify and undertake low-cost emission Figure 4 illustrates an example of how this could
reduction activities. (For more information occur, under a scenario where covered emissions
on this issue, see our previous reports—The track CARB’s Reference Scenario and continue
2017-18 Budget: Cap-and-Trade, Assessing to make up about 75 percent of total statewide
California Climate Policies—Transportation, emissions. Assuming no program modifications or
and Assessing California’s Climate Policies— extension of the cap-and-trade program beyond
Electricity Generation.) Also, in theory, the “cap” 2030, covered emissions would be only 29 percent
on emissions—which controls emissions by limiting below the 1990 level in 2030 (236 million metric
the number of allowances issued—can serve as a tons of carbon dioxide equivalent)—which would
backstop to other programs and
policies to ensure the state meets
Figure 4
certain goals. Strict enforcement
of this cap can thereby reduce Example of How Cap-and-Trade Allowances
uncertainty about whether the Banked in Earlier Years Can Be Used in Later Years
state will meet its overall emission Millions of Metric Tons of Carbon Dioxide Equivalent
reduction goals, even if other
factors—such as unsuccessful 450
policy implementation or changing Unused Allowances
Banked From Earlier Years
economic conditions—drive 400
emissions higher than expected.
350
As a result, we think using Program Caps
Banked Allowances Used to
cap-and-trade as a key policy tool Comply in Later Years
300
for achieving the state’s GHG goals
Emissions
is a reasonable approach.
250
…But Program Is Not Currently
Well-Positioned to Ensure State 200
40 Percent Below
Meets Its 2030 Target. In practice,
1990 Level by 2030
however, the cap-and-trade 150
program currently is not calibrated
100
in a way that will allow it to serve as
the backstop for meeting the state’s
50
statutory 2030 goal, much less the
more ambitious Scoping Plan target.
In short, the program is not stringent 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
enough—that is, it will not drive the
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fail to meet both the statutory goal (reduce to • Reduced and Volatile GGRF Revenue. As
201 million metric tons) and Scoping Plan goal allowance prices decline, so too will the state
(reduce to 175 million metric tons). We also estimate cap-and-trade auction revenue that goes
that a cumulative total of about 200 million unused into the Greenhouse Gas Reduction Fund
allowances would remain at the end of 2030. As (GGRF). These monies fund a wide variety of
a result, covered entities would have more than environmental and transportation programs.
enough allowances to comply with the regulation As covered entities begin to see that more
without actually needing to reduce their emissions allowances than they need are available, some
any farther. of the allowances offered at state auctions
Program Stringency Is a Concern Under A likely will go unsold. As a result, the state will
Range of Scenarios. The example in Figure 4 is have very low and/or volatile GGRF revenue
only one of many possible scenarios, as significant at these auctions—making it more difficult
uncertainty about future emissions remains. to fund the various programs that typically
However, under a wide range of different emissions rely on GGRF funding, including programs
scenarios that we analyzed—including a scenario intended to help the state meet its GHG
where covered emissions decline more slowly reduction goals. This revenue scenario could
(1 percent annually) and a scenario where covered be somewhat similar to the auction results
emissions decline more quickly (nearly 4 percent from 2016 and early 2017, where the state sold
annually)—the state would fail to meet its statutory very few allowances and generated almost
goal and a significant number of unused allowances no revenue. (See our report, The 2017-2018
would remain at the end of 2030. Notably, a Budget: Cap-and-Trade, for more details.)
significant decline in emissions driven by other
policies or economic conditions also would result in RECOMMENDATIONS
even more unused allowances—making it even less
Require CARB to Clarify Plan for Meeting
likely that cap-and-trade could act as a backstop to
2030 Goals. We recommend the Legislature
limit emissions and close any remaining emissions
direct CARB to submit a report to the Legislature
gap in 2030.
by July 31, 2023 that clarifies its plan for reducing
Lack of Program Stringency Also Affects
GHG emissions to meet 2030 goals. As part
Allowance Prices and Auction Revenue. An
of this report, CARB should identify new or
overall supply of allowances that significantly
expanded policies that would be used to meet
exceeds demand also results in relatively low
both the statutory goal and the Scoping Plan goal,
allowance prices and affects future state revenue
including the role that it expects cap-and-trade
from cap-and-trade auctions—both of which could
to play. The report should also include additional
make it harder for the state to meet its GHG goals in
details about the estimated emission reductions,
2030 and future years.
air pollution reductions, distributional impacts,
• Low Allowance Prices. An over-supply of and cost-effectiveness of each of those policies.
allowances eventually will result in a significant Such a report would help the Legislature:
drop in their market price—likely to levels near (1) evaluate the feasibility of the administration’s
or below the floor price established by CARB. new 2030 goal, (2) assess whether it agrees with
When prices would drop to these levels is the administration’s policy approach or whether
unclear, but they likely would approach the it would like to pursue a modified approach,
floor as market participants (such as covered (3) identify potential policy or budget actions
entities) become more confident that there needed to meet the Legislature’s 2030 benchmark,
will be excess allowances available through and (4) ensure there is adequate legislative
2030. Although reduced allowance prices oversight of the administration’s implementation of
mean lower direct costs for households and the plan. We recognize that specifying the details
businesses, they also mean the cap-and-trade of every policy and conducting a thorough analysis
program would have less of an effect of each policy might not be feasible by July 2023.
on emissions. However, given the available resources at CARB,
www.lao.ca.gov 9
AN LAO REPORT
we think providing a significant amount of additional • Extending the Program Beyond 2030.
detail and analysis is both reasonable to expect and The current cap-and-trade program operates
valuable for legislative decision-making. through 2030. Providing clear legislative
Consider Changes to Cap-and-Trade authority for a post-2030 cap-and-trade
Program to Make It More Consistent With program could give covered entities more of
Legislative Goals. We recommend the Legislature an incentive to reduce emissions before 2030,
consider changes to the cap-and-trade program in preparation for the post-2030 period when
to address concerns about stringency, and make the state’s emission reduction goals become
it more consistent with achieving 2030 GHG goals. more aggressive and allowances could
The state has several options for modifying the therefore—if the program still exists—become
program, including one or more of the following: more expensive. Although an extension would
not necessarily ensure the program works as
• Reducing Supply of Allowances Issued
a 2030 backstop, it could increase allowance
in Future Years. The state could employ
prices and encourage additional emission
several possible approaches to reducing the
reductions before 2030. Whether additional
future supply of allowances. For example,
legislative authority is needed for CARB to
the state could reduce the number of new
extend the program beyond 2030 currently
allowances issued in future years based on
is unclear.
a periodic assessment of whether the size of
the allowance bank exceeds predetermined A complete analysis and discussion of potential
thresholds. This would put upward pressure program modifications is beyond the scope of
on allowance prices, but make the program this report. However, the 2021 Annual Report
more stringent. CARB already has authority to of the Independent Emissions Market Advisory
make these types of changes. Committee discusses some of these options in
• Limiting Use of Offsets. Offsets are credits more detail. Given the wide variety of potential
generated by entities undertaking GHG modifications and the trade-offs associated
emission reduction projects from sources that with each approach, we recommend the
are not covered by the state’s cap-and-trade Legislature hold hearings in 2023 to have CARB
program (uncapped sources), such as forestry report on the changes it is considering to the
projects that increase or maintain carbon in program. Specifically, as part of such hearings,
the forests. Covered entities can purchase we recommend directing CARB to explain how
these offsets and use them (instead of potential programmatic changes would address
allowances) to cover some of their emissions concerns about program stringency and help the
(up to 4 percent of their emissions through state meet its near-term GHG goals.
2025, and 6 percent of emissions from 2026
CONCLUSION
through 2030). Offsets allow covered entities
to emit at higher levels than they otherwise The Legislature has established an ambitious
would, in exchange for emission reductions 2030 GHG reduction goal and tasked CARB
elsewhere, often outside of California. with developing a plan for achieving this goal.
Limiting, eliminating, or modifying the use Unfortunately, CARB’s updated plan lacks
of offsets in the program could encourage important details about how the state can achieve
greater emission reductions from covered this approaching objective. Going forward, we
entities within California. Some changes to the recommend the Legislature seek additional
use of offsets would require new legislation. information from the administration about
the policies it plans to implement to achieve
GHG targets, including potential changes to
the cap-and-trade program that make it more
consistent with the state’s 2030 goals.
10 LEGISLATIVE ANALYST’S OFFICE
AN LAO REPORT
www.lao.ca.gov 11
AN LAO REPORT
LAO PUBLICATIONS
This report was prepared by Ross Brown, and reviewed by Rachel Ehlers and Anthony Simbol. The Legislative
Analyst’s Office (LAO) is a nonpartisan office that provides fiscal and policy information and advice to the Legislature.
To request publications call (916) 445-4656. This report and others, as well as an e-mail subscription service, are
available on the LAO’s website at www.lao.ca.gov. The LAO is located at 925 L Street, Suite 1000, Sacramento,
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