Law as a Living Instrument

Volume VI — Governance and the Commons

THE PLATE

A watercolour of a house beside a river among trees and agave, hills in the distance. — Plate VI.07Two Signatures, One River.A right that nobody is paid to exercise is a sentence. A right with an office, a budget and two names on the appointment is an instrument.

THE LETTER

You have probably heard that a river in New Zealand is a legal person, and that Ecuador put the rights of nature into its constitution, and that a court in India once declared the Ganga a living entity. You may also have noticed that these facts arrive in the world almost entirely without follow-up. Something remarkable is announced, and then the reporting stops, and you are left holding a headline with no way of knowing whether anything actually happened.

This chapter is the follow-up. It goes to the record — the judgments, the enacting statutes, the funds named in the settlement schedules, the appeal that undid one of them in a hundred and nine days — and asks of each instrument the only two questions a practitioner needs answered. What has it actually delivered, and what does it cost to keep it working?

The answer is more encouraging than the cynical account and more demanding than the enthusiastic one. Rights of nature have won real cases against real mining concessions, and the wins are not symbolic: permits revoked, work stopped, cloud forest still standing. They have also, in eight of the ten instruments we survey, been enacted without funding anybody to use them. That second fact is not a reason to be against them. It is a line item, and line items can be filled.

The chapter has a second half, and the two halves are the same subject. Beyond rights of nature there is a whole family of legal devices built to change themselves on a schedule — sunset clauses, regulatory sandboxes, adaptive management conditions inside permits, and the treaty architecture that experimentalist governance describes. These are law behaving like a living system: sensing, revising, and doing it again. They have measurable outcomes and we will compute them.

What you should carry out of this chapter is one number and one rule. The number is what a guardian costs. The rule is that you do not enact a right you have not funded somebody to exercise.

— The Editors

DISCOVERY

What is already working

Start with the thing that worked, because it did, and the details are better than the summary.

Te Awa Tupua, the Whanganui River, New Zealand. In March 2017 the Whanganui River Claims Settlement Act gave legal personality to the river — not to a trust that manages the river, to the river. What makes this the strongest instrument in the world is not the declaration. It is everything the Act built around the declaration.

The river has a human face: Te Pou Tupua, two people, one nominated by the iwi with interests in the river and one by the Crown, who act in the name of Te Awa Tupua and hold its interests. They are advised by Te Karewao. A strategy group, Te Kōpuka nā Te Awa Tupua, drawn from iwi, local authorities, commercial and recreational users and environmental organisations, prepares a strategy document, Te Heke Ngahuru, for the river's health. And — this is the part that almost nobody reports — the settlement established Te Korotete o Te Awa Tupua, a contestable fund of NZ$30,000,000 for the river's health and wellbeing, with a further NZ$1,000,000 to establish Te Pou Tupua, inside a total financial redress to Whanganui iwi of NZ$80,000,000. Te Korotete is 37.5 % of the whole settlement.

The river has been a person for 3,468 days and counting. Nobody has had to argue about who may speak for it, because two named people are paid to.

Te Urewera. Three years earlier, in 2014, the same idea took a different shape. Te Urewera — 212,672 ha of forest in the eastern North Island — ceased to be a national park and was vested in itself, governed by the Te Urewera Board under the Tūhoe settlement. It has held that status for 4,435 days. The governance transition has been genuinely contested: when the Board removed back-country huts without wide consultation, the disagreement that followed was real and public. That is what governance looks like when it is actually happening rather than being described, and it belongs in an honest account.

Ecuador, and the case that changed the doctrine. Articles 71 to 74 of the 2008 Constitution give Pacha Mama the right to integral respect for her existence and the regeneration of her life cycles, and — the operative clause — allow any person, community, people or nationality to demand that a public authority enforce those rights. That is universal standing, in a constitution, and it has been in force 6,541 days.

For the first decade the doctrine was tested mostly in small cases. The Vilcabamba River case of 2011, brought by two landowners against a provincial road project, produced the first ruling in nature's favour and, importantly, placed the burden of proof on the defendant. Then in November 2021 the Constitutional Court decided the case of Bosque Protector Los Cedros — 5,256 ha of Andean cloud forest, home to the brown-headed spider monkey and the spectacled bear, inside a mining concession. The Court held that the mining project violated the rights of nature, along with the rights to a healthy environment, to water and to environmental consultation, and it revoked the permits. The forest is still there. That is not a symbolic outcome; it is a revoked permit and an unmined mountain.

Colombia. The Constitutional Court recognised the Atrato River as a subject of rights in 2016 and ordered a guardianship shared between the state and the riverine communities — fourteen community guardians beside a state representative. The Supreme Court followed in 2018 with the Colombian Amazon. The rulings are real and the compliance has been slow, and both facts are in the record.

Spain, and the part that should be studied. In 2022 the Mar Menor lagoon and its basin became the first ecosystem in Europe with legal personality — and it arrived not by judgment but by popular legislative initiative, on 640,000 signatures against a threshold of 500,000, a margin of 1.28 x. Citizens wrote a law about a lagoon and carried it into a national parliament. Whatever happens next, that route existed and was walked.

Four continents, and a pattern worth naming: the instruments that hold are the ones that named a person, gave them a term of appointment, and paid them.

THE ARITHMETIC

What works, what does not, and where the line sits

Three computations. The first is the one a practitioner came for; the second is the one that decides whether the first matters; the third is the honest negative and it is arithmetic, not mood.

First: what does standing cost?

A conventional environmental claim in the United States must clear Lujan: injury in fact, particular to a named plaintiff, caused by the defendant and redressable by the court. That is a threshold question, litigated before anyone looks at whether the river is poisoned. Take the four cases in which the question was actually settled, filing to final decision:

  case                              filed -> decided   span   merits reached
  ------------------------------------------------------------------------
  Sierra Club v. Morton              1969 -> 1972       3 yr        no
  Lujan v. Defenders of Wildlife     1986 -> 1992       6 yr        no
  Friends of the Earth v. Laidlaw    1992 -> 2000       8 yr       yes
  Massachusetts v. EPA               1999 -> 2007       8 yr       yes
  ------------------------------------------------------------------------
  mean                                               6.25 yr
  merits never reached                                 50 %

Six and a quarter years, on the doorway. And in half of them the court never reached the question of what was actually happening to the environment, because the case ended on who was entitled to ask.

Price the doorway. A standing fight — motion to dismiss, jurisdictional discovery, opposition, summary judgment on standing, appeal — is on the order of 900 h of counsel at $450 / h, which is $405,000, or $64,800 / yr across the mean span. Those two inputs are constructed, not measured; argue with them and the conclusion does not move much, because the comparator is zero.

Under Ecuador's constitution, standing is granted by the text and the vehicle is the acción de protección, which requires no filing fee and no counsel. Los Cedros ran from filing in 2018 to a merits ruling on appeal in 2019 — 1 yr — and to final constitutional judgment on 10 November 2021 — 3 yr. Against the US mean:

  US mean, to settle standing alone        6.25 yr
  Los Cedros, filing to merits                1 yr     ->  6.25 x
  Los Cedros, filing to final judgment        3 yr     ->  2.08 x
  cost of establishing standing in Ecuador       $0

Second: what does a guardian cost?

This is the number the chapter exists to produce, and it is built from the only instrument that actually has one. Cost an office shaped like Te Pou Tupua and Te Kōpuka, at New Zealand public-sector rates:

  two guardians, the human face                 NZ$  250,000 / yr
  secretariat, three full-time staff            NZ$  330,000 / yr
  monitoring and science programme              NZ$  300,000 / yr
  standing legal counsel and litigation         NZ$  250,000 / yr
  strategy group, convened and serviced         NZ$  120,000 / yr
  ---------------------------------------------------------------
  annual cost of a guardian office              NZ$1,250,000 / yr
  endowment at a 4.0 % real draw                NZ$31,250,000

Those five lines are a construction and they are labelled as one in lib/verify/VI_07.py. Here is what makes them worth the ink. Te Korotete o Te Awa Tupua is NZ$30,000,000. A bottom-up costing of what the Act's own governance structure needs lands 4.2 % above the fund the settlement actually created, which yields NZ$1,200,000 / yr — 96.0 % of the modelled cost.

Somebody, in 2017, in a settlement negotiation, priced a guardian correctly.

Now make it transferable. The Whanganui runs 290 km:

  annual guardianship          NZ$    4,310 per km per year
  endowment                    NZ$  103,448 per km

Apply it and the rest of the chapter explains itself. The Atrato is 750 km. The Ganga is 2,525 km, which implies an endowment of about US$156,724,138 — and the Ganga's guardianship was funded with $0.

Third: the honest negative, and it is the load-bearing part.

Of ten enacted rights-of-nature instruments, 1 of 10 carries a dedicated standing fund, one is funded from a wider settlement without a ring-fence, and 8 of 10 name a guardian with no money, or name no guardian at all.

Watch what that does. In March 2017 two rivers were given personhood in the same month. The Whanganui got two appointees and NZ$30,000,000. The Ganga and the Yamuna got three named officials — a programme director, a chief secretary, an advocate general — with no budget, no staff, and, as the State of Uttarakhand argued on appeal, potentially unbounded liability for floods and drownings and for pollution arriving from other states. The Supreme Court of India stayed the order on 7 July 2017.

  Ganga and Yamuna, personhood         109 days
  Te Awa Tupua, and counting         3,468 days      ->  31.8 x

The Lake Erie Bill of Rights, carried by Toledo voters in February 2019 with no guardian and no fund, was struck down as unconstitutionally vague on 27 February 2020: 366 days. Ohio had already legislated to bar such actions, and Florida did the same before Orange County's charter amendment could be used. Bolivia legislated an Ombudsman for Mother Earth and never constituted the office.

And the sharpest form of it. Take the five leading rights-of-nature wins — Vilcabamba, Los Cedros, Piatúa, the mangroves case, the Atrato. Who brought them? Two landowners with counsel. A municipal government and the national Ombudsman. An Indigenous federation with NGO counsel. An NGO with counsel. NGOs and community councils with counsel. 5 of 5 — 100 % — were brought by parties that already had money for lawyers.

This is the cut. Universal standing does not appear to have widened who sues. It has widened who wins. The constitutional grant removed a six-year argument about entitlement and handed the time straight to the merits — which is an enormous gain, and it is a gain that has so far been collected entirely by claimants who would have found a way to be heard anyway. A right is not the permission. A right is the annuity that lets somebody exercise the permission, and on that measure exactly one instrument in the world is solvent.

DREAM

What becomes ordinary

In the jurisdiction that has done this properly, the guardian is a job.

It is advertised. It has a term, a salary band, a reporting line and a successor. Two people hold it, one nominated by the people whose ancestors are buried along the water and one by the state, and when their term ends two others take it up. There is an office with a secretariat, a monitoring programme that produces the same measurements every year in the same form, counsel on retainer, and a fund whose draw is published. None of this is unusual. It is how a port authority is run, or a harbour board, or a cathedral fabric fund, and nobody thinks those are exotic.

Because the guardian exists, the questions arrive early. A consenting authority looking at a discharge permit writes to the guardian before the application is public, the way it would write to any other affected party, and most of what would have been litigation is instead correspondence. The cases that do go to court go quickly, because nobody spends three years arguing about whether the river has an interest — the interest has an office and a phone number.

The permits themselves are written to move. A discharge consent carries a trigger: if this indicator crosses this value for this many consecutive quarters, this condition tightens, on this schedule, without a new hearing. The consent holder knows the rule in advance and can price it. The regulator does not need a fresh decision every time the world changes. Amendment stops being a crisis and becomes a clause.

And the statute that created all of it carries a date on which it ends unless somebody looks at it again — not to abolish it, but to force the evidence into a room on a schedule. When the review comes, it comes with fifteen years of monitoring data gathered in a consistent form, because the office that gathers it has been funded continuously since the beginning.

None of this requires a new theory of nature. It requires an appointment, a budget line, a trigger clause and a date.

DESIGN

The four mechanisms, each with a jurisdiction and a number

The second half of the subject: law that revises itself. Four devices, each real, each measured.

1 · The sunset clause. A provision that expires unless renewed. Texas has run one continuously since 1977 — 49 years — under which the Sunset Advisory Commission has reviewed every state agency on a twelve-year cycle and abolished 41 of them, 0.84 per year, with the Commission reporting a return of about $22 for every dollar spent on the process. That last figure is the Commission's own and is labelled a self-report. The federal case is cleaner: section 215 of the USA PATRIOT Act carried a sunset, and after 6,715 days it lapsed on 15 March 2020 and has not been renewed.

The design rule. A sunset works when the reviewing body is separate from the agency reviewed and its calendar is statutory. Most US states that adopted sunset laws in the late 1970s later repealed or suspended them; Texas kept its reviewer independent and funded, and Texas still has one.

2 · The regulatory sandbox. A supervised space in which a firm may operate outside the normal rule, under conditions, for a fixed period. The UK's Financial Conduct Authority opened the first in 2016. Across the first two cohorts it took 146 applications and accepted 60 — 41.1 % — of which cohort one was 24 of 69, or 34.8 %, with 18 beginning to test. The FCA reported that around 90 % of cohort-one firms that completed testing went on toward a wider market launch. Independent work at the Bank for International Settlements measured what entry was worth: a 15 % increase in capital raised and a 50 % increase in the probability of raising capital at all.

The design rule, and the negative inside it. 58.9 % of applicants were refused and received nothing. A sandbox is a gate, and a gate rewards the applicant who arrived with counsel — the same distributional fault as universal standing that nobody is funded to use. If you build one, fund the applications of those who cannot draft them.

3 · Adaptive management inside a permit. The Glen Canyon Dam adaptive management programme runs the Colorado River below the dam. High-flow experiments — deliberate releases that rebuild sandbars — used to require a separate decision process each time. In 2012 a protocol pre-authorised them against monitored sediment conditions inside an annual window. The rate:

  1996-2011    3 experiments in 16 yr   =  0.188 / yr   ( 5.33 yr apart)
  2012-2018    5 experiments in  7 yr   =  0.714 / yr   ( 1.40 yr apart)
  ------------------------------------------------------------------
  rate multiple after pre-authorisation                   3.81 x

The permit did not change what was permitted. It changed how long it took to change it, and that is the whole of adaptive management in one line.

The negative, and it is a deliberate one. The opposite device exists and is widespread. Under the US "No Surprises" assurance, a habitat conservation plan approved with a term of up to a hundred years guarantees the permit holder that no further land, water or financial commitments will be required. That is certainty bought by removing adaptive capacity, on purpose, for a century. Both instruments are defensible; you cannot have both in the same permit.

4 · Experimentalist governance. Sabel and Zeitlin's four-step recursive architecture: framework goals and metrics set jointly, discretion to the units who must act, mandatory reporting and peer review, and periodic revision of the goals themselves in the light of what came back. The Montreal Protocol is the worked example and its record is the strongest in international law:

  Montreal Protocol, adoption years   1987 1990 1992 1997 1999 2016
  intervals                                 3    2    5    2   17  yr
  mean interval between amendments                        5.80 yr
  parties                                                  198
  reduction in controlled substances                        98 %

Set that beside an instrument with a shorter deadline written into statute. The US ozone standard is subject to a 5 yr statutory review. Its actual revisions — 1971, 1979, 1997, 2008, 2015 — are 11.00 yr apart on average, 2.20 x the statutory cycle, and 1.90 x slower than the treaty that has no deadline at all.

A deadline is not a clock. A funded review body with somewhere to put its findings is a clock.

DESTINY

How it holds when nobody is pushing

Three things keep a living instrument alive, and they are the same three whether the instrument is a river's personhood or a discharge consent.

A named office with a term. Not a committee, not a duty spread across three ministries — a post, with an appointment date and an end date and a successor. Te Pou Tupua is two people. The Ganga's guardianship was three officials who already had full-time jobs.

A fund whose draw is published. The endowment test is the whole of it: does endowment × draw rate meet the annual cost of the office? At 4.0 %, NZ$30,000,000 yields NZ$1,200,000 and meets 96.0 % of the modelled cost. Zero yields zero. There is no third case.

A data series that outlives every appointment. Monitoring gathered in a consistent form is what makes the periodic review something other than a argument between two opinions. It is also the cheapest of the three and the first to be cut.

Now the failure modes, plainly.

Preemption. A municipal instrument lives at the pleasure of the state above it. Ohio legislated against rights-of-nature actions before the Lake Erie ordinance was tested; Florida did the same before Orange County's amendment could be used. If your instrument sits below a legislature that can extinguish it in one budget bill, it is a campaign, not an instrument — and campaigns are worth running, but price them as campaigns.

Unbounded liability. The Ganga order failed on appeal not because the idea was wrong but because the guardians were exposed without limit and without resources. Any personhood instrument must state what the legal person is liable for, out of what fund, and what it is not liable for.

Revision without remedy. The EU Water Framework Directive has run three complete six-year planning cycles — 18 yr — and roughly 40 % of surface water bodies are at good ecological status, with 60 % not. Three revisions of the plan, no revision of the river. An adaptive cycle with no consequence attached produces excellent documents.

The guardian who is also the developer. Where the state is both the rights-holder's guardian and the promoter of the project, the guardianship is decorative. Ecuador's strongest wins came where the claimant was independent of the state's development programme; its weakest outcomes came where it was not, and that pattern has been studied rather than merely alleged.

DELIGHT

What it feels like

There is a particular pleasure in reading a settlement schedule and finding a number in it. Everyone remembers that the river became a person. Almost nobody has looked at the financial annex, and when you do, there is NZ$30,000,000 with a name on it — Te Korotete o Te Awa Tupua — and a modest NZ$1,000,000 to open an office. Somebody sat in a room and thought about desks.

And then the better pleasure, which is arithmetic doing something arithmetic is not supposed to do. You build a guardian's annual cost from first principles, line by line, in a different currency era, without looking at the schedule. You divide by a four per cent draw. You get NZ$31.25 million. Then you look at the schedule and it says thirty. Two people, eight years apart, reasoning from the same structure, landing four per cent apart. That is what it feels like when a design is right rather than merely intended: the numbers of people who never met agree.

The work itself is good work. It is reading statutes for their budget lines, which sounds dull and is the opposite — it is the part where you find out whether anyone meant it.

OPERATIONALIZE THIS

At the level of finance

The instrument: a Guardianship Endowment with a Trigger Deed.

Two documents, executed together. The first funds a guardian in perpetuity; the second makes the permit it supervises capable of amendment without a new hearing. Either alone fails in a way the record already shows.

Part one — the endowment.

Size. Bottom-up from the office, never top-down from the gesture. Five lines: guardians, secretariat, monitoring, counsel, convening. For a river-scale asset that comes to NZ$1,250,000 / yr, endowed at a 4.0 % real draw as NZ$31,250,000. For anything else, start from NZ$103,448 per kilometre and defend the variance.
Form. A charitable or statutory perpetual fund with a published investment policy and a published draw rate. Not an annual appropriation — an appropriation is a guardian with a one-year term.
Balance-sheet treatment. For the settling party, a one-off charge against the settlement provision, not an ongoing operating cost. That is precisely why it is affordable, and it is the argument that wins the negotiation: you are buying the end of an indefinite liability with a finite number.
Liability cap. State what the legal person may be sued for and out of what fund, and state what it may not. Uttarakhand's appeal turned on exactly this.
Counterparty. Whoever is settling — the Crown, the state, the consenting authority, the promoter of a project seeking social licence. In a commercial setting the counterparty is the developer, and the endowment is priced into the project as the cost of a consent that does not get litigated for six years.

Part two — the trigger deed.

Named indicators, measured by the guardian's monitoring programme, in a form fixed at the outset.
Pre-authorised amendments. If indicator X crosses value Y for Z consecutive periods, condition C tightens on schedule S, with no further hearing. This is the Glen Canyon move and it bought a 3.81 x increase in the rate at which the instrument could act.
A sunset on the deed itself, typically ten to fifteen years, so the whole arrangement must be re-examined with the data in the room. Texas's device, at the scale of one permit.
A standing invitation, not a standing fight. The consenting authority writes to the guardian before an application is public.

The first ninety days.

Day	Action	Artifact
1–15	Cost the guardian office, five lines, local rates	The cost stack
16–30	Set the draw rate and compute the endowment	The solvency test
31–45	Identify the settling counterparty and the provision it sits in	Term sheet
46–60	Draft the liability cap and the guardian appointment terms	Deed of trust
61–75	Name the indicators and write two trigger clauses	The trigger deed
76–90	Execute both, and publish the draw rate	Two signed documents

The number that decides it. One inequality, on the front page:

        endowment  x  real draw rate
        ----------------------------   >=  1
          annual cost of the office

If that ratio is below one, you do not have a right. You have a declaration, and the record says a declaration lasts somewhere between 109 days and however long it takes someone with a budget to notice it. If the ratio is at or above one, you have an instrument, and the record says it lasts.

APPRECIATIVE QUESTIONS

Twelve, for a room

Discovery — what is already working

Where in our own governing documents has a right already been given to somebody who was also given the means to use it — and what did that cost?
Think of a permit, licence or agreement we hold that has been amended without a fight. What made that amendment easy, and who made it easy?
Which of the natural systems we depend on already has somebody whose actual job is to speak for it, even informally — and how would we find out their name?

Dream — what becomes possible

If the river, forest, aquifer or coastline nearest us had an office with two named people and a published budget, what would arrive in our inbox that does not arrive now?
Imagine every material consent we hold carried two pre-authorised trigger clauses instead of a renegotiation. What would we stop spending money on?
If one of our own policies had to survive a public review on a fixed date with fifteen years of consistent data in the room, which one would we most want it to be?

Design — what we build

What are the five cost lines of a guardian for the thing we most depend on, and who here could price them by Friday?
Which two indicators would we be willing to be bound by in advance, and what would have to be true for us to sign that?
What is the right sunset date for the arrangement we are about to make — and what evidence do we want sitting on the table when it arrives?

Destiny — how it holds

Who holds this when everyone currently in the room has moved on, and what is their term of appointment?
What is the smallest annual sum that would keep the monitoring series unbroken for twenty years, and where in the budget does it sit so that it is not the first thing cut?
If a legislature above us could extinguish this in one budget bill, what would we build instead that it could not reach?

WORKS CITED

Boyd, D. R. (2017). The Rights of Nature: A Legal Revolution That Could Save the World. ECW Press.

Cornelli, G., Doerr, S., Gambacorta, L. and Merrouche, O. (2020). "Inside the Regulatory Sandbox: Effects on Fintech Funding." BIS Working Papers, No. 901. Bank for International Settlements.

Corte Constitucional del Ecuador (2021). Sentencia No. 1149-19-JP/21 (Bosque Protector Los Cedros), 10 November 2021.

Corte Constitucional de Colombia (2016). Sentencia T-622/16 (Río Atrato).

Doremus, H. (2001). "Adaptive Management, the Endangered Species Act, and the Institutional Challenges of 'New Age' Environmental Protection." Washburn Law Journal, 41(1), 50–89.

European Environment Agency (2018). European Waters — Assessment of Status and Pressures 2018. EEA Report No. 7/2018.

Financial Conduct Authority (2017). Regulatory Sandbox Lessons Learned Report. London: FCA.

Financial Conduct Authority (2015). Regulatory Sandbox. London: FCA.

Kauffman, C. M. and Martin, P. L. (2017). "Can Rights of Nature Make Development More Sustainable? Why Some Ecuadorian Lawsuits Succeed and Others Fail." World Development, 92, 130–142.

Kauffman, C. M. and Martin, P. L. (2021). The Politics of Rights of Nature: Strategies for Building a More Sustainable Future. MIT Press.

Kareiva, P. et al. (1999). Using Science in Habitat Conservation Plans. National Center for Ecological Analysis and Synthesis and American Institute of Biological Sciences.

New Zealand Government (2014). Te Urewera Act 2014. Public Act 2014 No. 51.

New Zealand Government (2017). Te Awa Tupua (Whanganui River Claims Settlement) Act 2017. Public Act 2017 No. 7.

Ostrom, E. (1990). Governing the Commons: The Evolution of Institutions for Collective Action. Cambridge University Press.

República del Ecuador (2008). Constitución de la República del Ecuador, Articles 71–74.

Reino de España (2022). Ley 19/2022, de 30 de septiembre, para el reconocimiento de personalidad jurídica a la laguna del Mar Menor y su cuenca.

Sabel, C. F. and Zeitlin, J. (2008). "Learning from Difference: The New Architecture of Experimentalist Governance in the European Union." European Law Journal, 14(3), 271–327.

Sabel, C. F. and Zeitlin, J. (eds) (2010). Experimentalist Governance in the European Union: Towards a New Architecture. Oxford University Press.

Stone, C. D. (1972). "Should Trees Have Standing? — Toward Legal Rights for Natural Objects." Southern California Law Review, 45, 450–501.

Texas Sunset Advisory Commission. Sunset in Texas, successive biennial reports. Austin, Texas.

United Nations Environment Programme, Ozone Secretariat. Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer, successive editions.

United States District Court for the Northern District of Ohio (2020). Drewes Farms Partnership v. City of Toledo, 441 F. Supp. 3d 551.

United States Supreme Court. Sierra Club v. Morton, 405 U.S. 727 (1972); Lujan v. Defenders of Wildlife, 504 U.S. 555 (1992); Friends of the Earth, Inc. v. Laidlaw Environmental Services, 528 U.S. 167 (2000); Massachusetts v. EPA, 549 U.S. 497 (2007).

Uttarakhand High Court (2017). Mohd. Salim v. State of Uttarakhand, Writ Petition (PIL) No. 126 of 2014, judgment of 20 March 2017; stayed by the Supreme Court of India, 7 July 2017.

US Geological Survey, Grand Canyon Monitoring and Research Center. High-Flow Experiments at Glen Canyon Dam, successive reports.

Note on figures. Every figure above is computed in lib/verify/VI_07.py and each is labelled there as MEASURED — from a public record — or CONSTRUCTED, meaning this chapter's own model. The guardian cost stack is constructed; the NZ$30,000,000 it is compared against is measured. Case spans are given at year granularity on both sides of the comparison, because that is the precision the US filing records support.