Title and Executive Summary

The Net-Zero Finance Framework on Trial: A Forensic Examination of the Science, Economics, and Empirical Record of Mark Carney's Climate Architecture

Executive Summary

This evidence base assembles three converging lines of inquiry against the net-zero finance framework as constructed by Mark Carney through the Task Force on Climate-related Financial Disclosures (TCFD, 2015), the Taskforce on Scaling Voluntary Carbon Markets (TSVCM, 2020–21), the Glasgow Financial Alliance for Net Zero (GFANZ, 2021), and his executive role at Brookfield Asset Management. The findings, drawn from peer-reviewed science, primary policy documents, and investigative journalism, can be summarised in three propositions:

1. The physical-science layer is contested at its foundations. A growing peer-reviewed literature — including Anderson (2015) in Nature Geoscience, Dyke, Watson and Knorr (2021), Creutzig et al. (2021) in GCB Bioenergy, and the UK FIRES Absolute Zero report (2019) — argues that "net zero" as operationalised in policy depends on speculative carbon-dioxide-removal (CDR) technologies that do not exist at scale, and that the accounting framework licenses delay rather than reduction.

1. The economic-instrument layer has not produced measurable atmospheric improvement. Atmospheric CO₂ concentrations rose from a 2015 global average of 399.4 ppm to 422.8 ppm in 2024 (NOAA) — the largest single-year rise on record (3.75 ppm in 2024). Fossil-fuel CO₂ emissions reached a projected record 38.1 GtCO₂ in 2025 (Global Carbon Project). The 65 largest banks committed $869 billion to fossil fuel companies in 2024 alone, a $162.5 billion year-on-year increase (Banking on Climate Chaos 2025). Banks have financed fossil fuels by $7.9 trillion since the Paris Agreement.

1. Carney's specific institutional contributions fail on their own terms. His February 2021 claim that Brookfield's $600 billion portfolio was "net zero today" was repudiated by climate scientists and effectively retracted by Carney himself within days. The "avoided emissions" methodology he invoked is explicitly excluded by mainstream carbon-accounting standards. By late 2024 and early 2025, the major US banks Carney had assembled into the Net-Zero Banking Alliance — JPMorgan, Citi, Bank of America, Morgan Stanley, Wells Fargo, Goldman Sachs — had all withdrawn from it.

This report flags the epistemic status of each source: peer-reviewed science, primary regulatory documents, investigative journalism, and policy commentary are distinguished throughout.

Layer 1: The Physical Science of Net Zero

Layer 1: The Physical Science — Is "Net Zero" Coherent?

1.1 The IPCC Mainstream Position

The IPCC Sixth Assessment Report (AR6) Working Group III, approved in April 2022 by 195 governments, established the scientific anchor of all current net-zero policy. Its central finding (Summary for Policymakers, B.6) is that to limit warming to 1.5°C with no or limited overshoot, global greenhouse gas emissions must peak before 2025 at the latest and fall 43% by 2030 relative to 2019 levels, with methane falling roughly 34% in the same period. Global CO₂ emissions must decline 48% by 2030 and reach net zero "in the early 2050s"; total GHG emissions must fall 84% by 2050. Limiting warming to 2°C requires a 27% GHG reduction by 2030.

Critically, the IPCC's modelled 1.5°C pathways are not feasible without large-scale carbon dioxide removal (CDR). AR6 WGIII states: "The deployment of carbon dioxide removal to counterbalance hard-to-abate residual emissions is unavoidable if net zero CO₂ or GHG emissions are to be achieved." The Special Report on 1.5°C (SR1.5, 2018) showed that across illustrative pathways (P1–P4), cumulative CDR ranges from approximately 100 GtCO₂ (in the demand-restraint pathway P1) to 1,191 GtCO₂ via BECCS alone in the resource-intensive overshoot pathway P4 (IPCC, 2018, Chapter 2).

The remaining carbon budget has collapsed since Paris. The IPCC AR6 WGI estimated a remaining budget of 500 GtCO₂ from January 2020 for a 50% chance of 1.5°C (400 GtCO₂ for a 67% chance). The 2025 update of Indicators of Global Climate Change (Forster et al., Earth System Science Data, 2025) puts the remaining 1.5°C budget at just 130 GtCO₂ from the start of 2025 — roughly three years at current emissions of approximately 40 GtCO₂/year. The Global Carbon Project's 2025 report (the 20th annual edition) describes the 1.5°C budget as "virtually exhausted" — about 170 GtCO₂, equivalent to four years at current emissions levels. The 1.7°C and 2°C budgets stand at 525 GtCO₂ (12 years) and 1,055 GtCO₂ (25 years) respectively.

1.2 The Peer-Reviewed Critics

Kevin Anderson (Tyndall Centre, Manchester)

Anderson's Nature Geoscience paper "Duality in climate science" (vol. 8, 2015, pp. 898–900) is the foundational peer-reviewed critique. Its one-sentence summary states: "Delivery of palatable 2 °C mitigation scenarios depends on speculative negative emissions or changing the past. Scientists must make their assumptions transparent and defensible, however politically uncomfortable the conclusions."

Anderson documents that "negative emission technologies … are ubiquitous in 2°C scenarios, despite their remaining at little more than the conceptual stage of development." He continues: "Whilst speculative negative emissions are de rigueur, similarly imprecise Earth system processes (but with the potential to reduce the available budgets) are seldom included in quantitative scenarios." His co-authored work with Glen Peters in Science (2016), "The trouble with negative emissions," argued that "rather than relying on far-off negative-emissions technologies, Paris needed to deliver a low-carbon road map for today." This is peer-reviewed science.

Dyke, Watson and Knorr — "A dangerous trap"

The April 22, 2021 essay in The Conversation by James Dyke (University of Exeter), Robert Watson (University of East Anglia, former IPCC chair) and Wolfgang Knorr (Lund University) is opinion/commentary by senior climate scientists, not a peer-reviewed paper, but is widely cited and republished. Its core arguments are:

• "The premise of net zero is deceptively simple — and we admit that it deceived us."
• The concept has "licensed a recklessly cavalier 'burn now, pay later' approach which has seen carbon emissions continue to soar."
• It has "hastened the destruction of the natural world by increasing deforestation today, and greatly increases the risk of further devastation in the future."
• The trio note that "If we had acted on Hansen's testimony [in 1988], we would have been able to decarbonise our societies at a rate of around 2% a year in order to give us about a two-in-three chance of limiting warming to no more than 1.5°C."
• The accounting move that created the trap was the inclusion of forest carbon sinks (originally to secure US ratification of the Kyoto Protocol): "Postulating a future with more trees could in effect offset the burning of coal, oil and gas now."

Robert Watson's role is significant: he chaired the IPCC from 1997 to 2002. The essay represents a senior-establishment defection from the consensus interpretation of net zero.

UK FIRES "Absolute Zero" Report (2019)

The Absolute Zero report, published 29 November 2019 by UK FIRES — a consortium led by Professor Julian Allwood (Cambridge) with researchers at Oxford, Bath, Nottingham, Strathclyde and Imperial, funded by £5m from EPSRC — is engineering analysis rather than peer-reviewed paper but is highly technically rigorous. Its core assumptions are stark:

"The target of zero emissions is absolute — there are no negative emissions options or meaningful 'carbon offsets.' Absolute Zero means zero emissions."

The report concludes that to meet the UK's legally binding 2050 target, the UK must plan to use 40% less energy in 2050 than today and that achieving zero requires "the phasing out of flying, shipping, lamb and beef, blast-furnace steel and cement." It pointedly says: "We can't wait for breakthrough technologies to deliver net-zero emissions by 2050." A 2022 reassessment by Allwood ("Was Absolute Zero right?") notes that "on CCS, the Absolute Zero report reflected the reality that to date no such technologies were operating in the UK, and therefore forecast that by 2050 we should continue to anticipate that they would not exist. So far, the prediction on that front has been absolutely correct."

Stuart Parkinson and Scientists for Global Responsibility

SGR's post-COP26 analysis (2021) by Executive Director Stuart Parkinson states: "Most current 'Net Zero' pledges depend on large-scale roll-out of highly suspect 'negative emissions technologies'." SGR has also documented the systematic exclusion of military emissions from the net-zero accounting frame — Parkinson's research found the US military's annual carbon footprint at approximately 205 million tonnes and the UK military's at 11 million tonnes, both largely outside national NDC accounting.

Glen Peters (CICERO)

Peters, Research Director at CICERO (Norway) and a Global Carbon Project lead, has published extensively on the gap between mitigation pledges and physical carbon budgets. With Anderson (Nature, 2016), Peters argued that integrated assessment models systematically obscured the scale of assumed negative emissions. As one of the principals of the Global Carbon Project, Peters' annual budget assessments (including the 2025 Global Carbon Budget, 20th edition) provide the empirical record that emissions have continued to rise rather than fall through the entire period of net-zero policy development.

1.3 Carbon Dioxide Removal Technologies — Empirical Status

BECCS (Bioenergy with Carbon Capture and Storage)

BECCS is the dominant CDR assumption in IPCC integrated assessment models. The IPCC SR1.5 (2018) modelled BECCS deliveries of up to ~20 GtCO₂/year by mid-century. Land-area requirements are systemically large:

• WRI (citing IPCC SRCCL, 2019): "Climate models require 109–990 million hectares of land for BECCS, with most averaging around 380–700 million hectares" — versus global cropland of 1.6 billion hectares in 2010.
• Chatham House (2020): Pathway P4 requires 7.2 million km² for BECCS feedstock — more than double the area of India, or roughly half global croplands.
• Creutzig et al. (2021, GCB Bioenergy, peer-reviewed): "The majority of scenarios that meet the goals of the Paris agreements exceed sustainability and precautionary thresholds in land, biodiversity and BECCS potentials."
• Harper et al. (2018, Nature Communications): "Carbon removed from the atmosphere through BECCS could easily be offset by losses due to land-use change."

Despite over a decade of policy attention, only one commercial-scale BECCS facility (Decatur, Illinois, ~1 Mt/yr) is operating, while IPCC scenarios assume cumulative deliveries of hundreds to over a thousand gigatonnes.

Direct Air Capture (DAC)

DAC is at the low end of the deployment spectrum. As of 2024–2025, the IEA reports that 27 DAC plants are commissioned globally with a combined operational removal capacity of approximately 11,000 tonnes of CO₂ per year — roughly 0.00003% of annual fossil emissions of 38.1 GtCO₂. Climeworks' Mammoth plant in Iceland, opened 2024, has nominal capacity of 36,000–40,000 t/yr; 1PointFive's Stratos facility (Texas) is under construction at megatonne scale.

Cost remains the binding constraint. Peer-reviewed analysis (Young et al., Joule, 2023) and the IEAGHG (2024) place first-of-a-kind DACCS removal costs at $400–$1,000 per tonne. The Belfer Center (Harvard, 2024) concludes: "Removals from early full-scale plants coming online towards 2030 currently appear likely to cost $400–1000 per tonne." Reaching a gigatonne of annual capacity would require 1,400–4,200 TWh of low-carbon electricity — comparable to total US utility-scale generation. Independent modelling by Chatterjee et al. (Nature Communications Sustainability, 2026) found that "renewable energy remains more cost effective for climate and health outcomes than direct air capture except under highly optimistic technology improvements."

Nature-Based Solutions — Permanence and Additionality

The peer-reviewed literature on forest-based offsets is overwhelmingly negative on both additionality and permanence. West, Börner, Sills and Kontoleon (PNAS 117(39), 2020), examining voluntary REDD+ projects in the Brazilian Amazon using synthetic control methods, found systemic overstatement: "a subset of 18 REDD+ projects have generated 62 million carbon-offset credits" while delivering little to no additional deforestation reduction. A subsequent West et al. paper in Science (vol. 381, 2023), examining 26 REDD+ projects in six countries, concluded "most projects did not substantially reduce deforestation, and those that did reduced it much less than had been claimed." Badgley et al. (Global Change Biology, 2022) found "systematic over-crediting" in California's compliance offsets program — between 20% and 39 million tonnes of over-issuance. The most recent peer-reviewed assessment (Tang et al., Science, 2025) of 52 REDD+ projects across 12 countries confirms that "only a minority of project units showed statistically significant reductions in deforestation, and just 19% met their reported emissions targets" with only "13.2% of tradable credits supported by counterfactual analysis."

A separate physical-permanence problem: forest carbon credits assume century-scale storage but face increasing risk from fire, drought and disease. California's compliance program had to retire credits in 2021 after wildfires destroyed credited forests.

1.4 Empirical Failure of Voluntary Carbon Offsets

The Guardian / Die Zeit / SourceMaterial nine-month investigation (published 18 January 2023) examined Verra, the dominant voluntary carbon-credit certifier, which has issued more than 1 billion credits since 2009. Working with academic teams it concluded that "more than 90% of [Verra's] rainforest offset credits — among the most commonly used by companies — are likely to be 'phantom credits' and do not represent genuine carbon reductions." It drew on West et al. (2020, 2023) and a 2022 University of Cambridge study, which found the deforestation threat for Verra projects had been overstated by approximately 400% on average. Buyers identified included Disney, Shell, Gucci, Salesforce, BHP, easyJet and Pearl Jam.

This is investigative journalism built on peer-reviewed science. Verra disputed the methodology in a January 2023 Technical Review; the Cambridge research team's response noted that Verra's response largely confirmed the core finding of over-crediting while contesting magnitudes. By mid-2023 Verra's CEO David Antonioli had resigned and the company suspended several methodologies.

Barbara Haya, who leads the Berkeley Carbon Trading Project at UC Berkeley, summarised: "The implications of this analysis are huge." Carbon Plan's analyses of California compliance offsets reached parallel conclusions: project baselines were systematically set above counterfactual deforestation rates, generating credits with no atmospheric benefit.

1.5 Real Zero versus Net Zero

The distinction is most cleanly articulated in Absolute Zero (UK FIRES, 2019): "Absolute Zero means zero emissions" — no offsets, no negative emissions, no removals counted against ongoing emissions. The scientific case for this position rests on the cumulative-budget property of CO₂ established in the IPCC AR6 WGI: warming is approximately linear in cumulative emissions, and CDR at the speculative scale assumed in net-zero scenarios is not currently demonstrable. Researchers including Dyke, Watson, Knorr, Anderson, Allwood, and SGR have all argued in their respective publications that "real zero" — actual emissions cuts without offset accounting — is the only framework physically consistent with avoiding 1.5–2°C overshoot. A 2024 BMJ analysis by health-sector researchers describes Net Zero as facilitating climate pledges that depend on "highly speculative technologies" and contributing to an "aspiration-action gap."

Layer 2: The Economics of Carbon Finance

Layer 2: The Economics — Have Carney's Financial Instruments Reduced Emissions?

2.1 The Empirical Trajectory

Before assessing individual instruments, the unambiguous physical record must be stated. NOAA Global Monitoring Laboratory data show:

| Year | Global mean atmospheric CO₂ |
|------|--------------------------|
| 2015 (Paris Agreement) | 399.4 ppm |
| 2021 (GFANZ launch; COP26) | ~414.7 ppm |
| 2024 | 422.8 ppm (record annual mean) |
| May 2025 (seasonal peak, Mauna Loa) | 430.5 ppm (NOAA) / 430.2 ppm (Scripps) |

The 2024 single-year rise of 3.75 ppm was the largest in the 67-year record. Global fossil-fuel CO₂ emissions are projected at a record 38.1 GtCO₂ in 2025 (Global Carbon Project, 2025). The years 2015–2025 — the period during which TCFD, the Sustainable Finance framework, GFANZ, the TSVCM and ESG investing achieved global scale — produced no observable bending of the atmospheric concentration curve. The contrast with the IPCC requirement of a 43% fall by 2030 is severe: from 2019 levels, emissions have continued to grow rather than decline.

2.2 TCFD and Climate Disclosure

Empirical evidence on disclosure-driven emissions reductions is mixed and largely weak. Multiple peer-reviewed studies of the TCFD framework (launched by Carney as Bank of England Governor and FSB chair in 2015) report that disclosure increases without commensurate emissions reductions:

• Bingler, Kraus, Leippold and Webersinke ("Cheap talk and cherry-picking: What ClimateBert has to say on corporate climate risk disclosures," Finance Research Letters, 2022) used machine learning to analyse 800 TCFD reports and concluded firms' disclosures are "mostly non-committal" and "cherry-picked," with weak relationships between TCFD adoption and emissions trajectories.
• The 2025 structured review by Cojoianu et al. (Cogent Business & Management) concludes that "much of the progress remains procedural rather than substantive. Firms tend to prioritize disclosure quantity over quality, focusing on easily reportable metrics and governance structures while neglecting strategic integration."
• Empirical work by Depoers et al. (cited in the same review) finds "discrepancies between reported GHG emissions in corporate reports and those disclosed to the CDP, with significantly lower emissions appearing in corporate reports" — evidence of selective disclosure.
• A more favourable result comes from a 2025 Review of Accounting Studies paper by Yu et al. on TCFD-member lenders, which finds that borrowers of TCFD-member lenders reduce pollution somewhat. But this study addresses lenders' borrowers, not the disclosure framework's economy-wide effect.
• Cynthia Williams' review in the Seattle University Law Review (2024), "Does Climate Disclosure Work to Reduce Greenhouse Gas Emissions?" describes the evidence as supporting only "cautious optimism" — implying the case is not made.

The structural critique, articulated by Tariq Fancy and others, is that disclosure shifts attention from emissions reduction to information management — i.e. governance and risk-management reporting categories show the highest disclosure growth while strategy and metrics-and-targets lag (Ding et al., Journal of Business Ethics, 2022).

2.3 ESG Investing

The peer-reviewed empirical literature on ESG and real-world emissions is increasingly negative on real-economy effects. Atta-Darkua, Glossner, Krueger and Matos ("Decarbonizing Institutional Investor Portfolios," 2023 working paper) studied global institutional equity holdings and firm-level emissions and found that "portfolio re-weighting is the predominant strategy used by climate-conscious institutions to 'green their portfolios'" and "limited evidence of corporate changes by the top emitting portfolio firms, particularly following the 2015 Paris Agreement." They conclude "the re-weighting actions of institutional climate initiatives are likely too small to have a meaningful impact" on emissions.

The "portfolio shuffling" critique — that divestment merely transfers ownership without changing real activity — has been formalised in academic work by Berk and van Binsbergen (Stanford, "The impact of impact investing," 2021) and Hartzmark and Shue (Yale, "Counterproductive sustainable investing," 2022). The latter argued that capital-allocation effects of ESG flows on cost of capital are too small to alter firm behaviour. A 2025 Review of World Economics paper (Marszk and Lechman) finds that emissions accounting methodologies vary "in some cases dozens of times for the same portfolio," undermining the credibility of net-zero financial products.

A separate empirical concern is the persistent fossil-fuel exposure of ESG funds. Multiple investigative analyses (e.g., InfluenceMap's 2023 review of climate-themed funds) have found ESG-labelled funds frequently holding fossil fuel producers. By 2024–2025, Morningstar data showed sustained ESG fund holdings in oil and gas integrated majors.

2.4 The Tariq Fancy Critique

Tariq Fancy was BlackRock's first Chief Investment Officer for Sustainable Investing (2018–2019). After leaving, in August 2021 he published a three-part essay, "The Secret Diary of a 'Sustainable Investor,'" on Medium, expanded in June 2022 with an epilogue. The essay's thesis is direct:

"[T]his essay shares how my thinking evolved from evangelizing 'sustainable investing' for the world's largest investment firm to decrying it as a dangerous placebo that harms the public interest."

Fancy's specific arguments — relevant to Carney's framework because Carney built the policy and infrastructure layer that Fancy operated within — include:

• The category-confusion argument: "One of the biggest challenges for the industry is it never actually clarified whether this is good for investors or good for the planet, and those are completely different things."
• The "climate risk" sleight-of-hand: "When bankers and financial experts say they are protecting against climate risks, they mean climate risks in their portfolios, not preventing climate change from happening." (Stanford GSB CASI, 2023). This directly indicts the central conceptual move of TCFD — that disclosing climate risk to investors is climate action.
• The divestment fallacy: "The theory of change is ultimately the exact same as the theory of divestment, which is to say, 'if I don't own this thing, it'll change something in the world'. The reality is it doesn't do anything."
• Green bonds: "It's not totally clear if they create much positive environmental impact that would not have occurred otherwise, since most companies have a few qualifying green initiatives that they can raise green bonds to specifically fund while not increasing or altering their overall plans."
• Industry economic incentives: "It doesn't create any value for the world in terms of allocating capital correctly. But it's definitely a big win for asset managers."

The Fancy critique was extensively covered by The Economist, Financial Times (Moral Money and Unhedged newsletters), Fortune, and Bloomberg. Robert Armstrong at the Financial Times summarised the essay as the most powerful internal critique of ESG yet published. Carney has not, to public knowledge, directly responded to Fancy's arguments by name. A formal academic response by Saturna Capital and others in the impact-investing field ("ESG: The Fancy-ful Narrative," Impact Entrepreneur, 2021) characterised the piece as "old news for veterans in the field" — but did not refute the core empirical claim about the gap between portfolio shuffling and real-world emissions.

2.5 The Voluntary Carbon Market and the TSVCM

The Taskforce on Scaling Voluntary Carbon Markets (TSVCM) was launched by Mark Carney in his role as UN Special Envoy for Climate Action and Finance and as UK PM Boris Johnson's COP26 Finance Adviser. It was chaired by Bill Winters (CEO, Standard Chartered) and sponsored by the Institute of International Finance. Its Phase II report (July 2021) recommended that voluntary carbon credit volume grow by up to 15 times by 2030 to support a 1.5°C pathway. The Institute of International Finance projected the annual market value could reach $100 billion by 2050.

What happened next is decisive: the supply side of the market the TSVCM proposed to expand was the very Verra/REDD+ universe subsequently shown by peer-reviewed research and the Guardian/Die Zeit/SourceMaterial investigation to have systematic over-crediting on the order of 80–94%. By 2023, the voluntary carbon market had contracted sharply — Trove Research and others reported volume declines as corporate buyers retreated. The TSVCM's recommendations were transferred to the Integrity Council for the Voluntary Carbon Market (ICVCM), whose own Core Carbon Principles process found that the great majority of existing methodologies — including most REDD+ — did not meet integrity standards.

The TSVCM phantom-credit problem is structural: when the offset market expands faster than verification capacity (which the 15x expansion explicitly required), inflation is inevitable. Critics including the International Accountability Project (IATP), Carbon Market Watch and Climate Justice Alliance highlighted at the time that the TSVCM's first draft identified "excessive speculation in futures" as a market integrity concern but this language disappeared in the second version.

2.6 GFANZ and Fossil Fuel Financing — The Empirical Record

The Glasgow Financial Alliance for Net Zero was launched by Carney in April 2021 with a headline figure of more than $130 trillion in committed assets. Its actual fossil-fuel financing record, documented by the annual Banking on Climate Chaos report (authored by Rainforest Action Network, BankTrack, Reclaim Finance, Sierra Club, Indigenous Environmental Network, Oil Change International, Urgewald and the Center for Energy, Ecology, and Development), is as follows:

• Since the 2016 Paris Agreement: $7.9 trillion in cumulative fossil-fuel financing by the world's largest 65 banks (BOCC 2025).
• 2023 financing: $705 billion (BOCC 2024).
• 2024 financing: $869 billion — an increase of $162.5 billion year-on-year, reversing two years of declining commitments.
• 2024 financing for companies expanding fossil-fuel production: $429 billion (cumulatively $1.6 trillion since 2021).
• JPMorgan Chase: largest fossil financier in 2024 at $53.5 billion.
• Top four US banks (JPMorgan, Bank of America, Citi, Wells Fargo): 21% of global fossil-fuel financing in 2024.

By early 2025, the Net-Zero Banking Alliance — GFANZ's bank pillar — had been abandoned by every major US bank that founded it: Wells Fargo (early December 2024), Goldman Sachs (6 December 2024), Citigroup and Bank of America (31 December 2024), Morgan Stanley (2 January 2025), JPMorgan Chase (7 January 2025). The Net Zero Insurance Alliance had already collapsed in April 2024. GFANZ itself was restructured to open membership to "any financial institution working to mobilize capital" — effectively dropping the net-zero commitment as a condition of participation.

The Reclaim Finance assessment is unequivocal: "this year, banks have shown their true colours — many have walked away from climate commitments and doubled down on financing fossil fuel expansion, even as global temperatures break records."

Layer 3: Carney's Plan in Detail

Layer 3: Carney's Specific Plan — Where It Fails on Its Own Terms

3.1 The Brookfield "Net Zero Today" Episode (February 2021)

On 10 February 2021, in an interview with Bloomberg Live, Mark Carney — then UN Special Envoy for Climate and vice-chair of Brookfield Asset Management — stated: "Brookfield is in a position today where we are net zero," referring to the firm's then $575–600 billion portfolio. He explained: "The reason we're net zero is that we have this enormous renewables business … all the avoided emissions that come with that."

The claim collapsed within two weeks. Greenpeace's Unearthed investigation (26 February 2021) documented Brookfield's holdings in:

• The Dalrymple Bay Coal Terminal in Australia (49% stake, ~$600m), one of the world's largest coal export facilities;
• Significant interests in Canadian oil sands infrastructure;
• Major gas pipeline assets in Canada, India and the UAE;
• A then-pending acquisition of a stake in Saudi Aramco's pipelines.

The "avoided emissions" methodology — claiming credit for the emissions a renewables business would have caused had it instead been a fossil business — is rejected by all mainstream carbon-accounting standards. Bill Hare (Director, Climate Analytics): "I don't think this is a reasonable definition of net zero using avoided emissions from a counterfactual baseline to offset actual emissions. This could begin to look like a giant carbon Ponzi scheme." Ben Caldecott (Oxford Sustainable Finance Programme): "Most large asset managers have a renewable energy fund. Simply having one does not make you net zero." Wolfgang Kuhn (ShareAction): "Net-zero is quickly becoming a useless concept: every time it is brought into play to justify the continued financing of carbon-emitting projects, it loses meaning."

The GHG Protocol Corporate Standard and the Science Based Targets initiative (SBTi) Net-Zero Standard both explicitly exclude avoided emissions from net-zero accounting. Avoided emissions belong, at best, in a separate "Scope 4" or "comparative" disclosure category and cannot be netted against Scope 1, 2 or 3.

Within 48 hours of Unearthed's publication, on 27 February 2021, Carney issued a clarifying statement: "I have always been — and will continue to be — a strong advocate for net zero science-based targets, and I also recognize that avoided emissions do not count towards them." The original claim was therefore retracted. The episode is the cleanest extant test of Carney's framework: when the person who designed it applied it to a portfolio he personally co-managed, he produced a claim that the climate-science community immediately repudiated and that he himself withdrew.

3.2 Brookfield Under Standard Scope 1/2/3 Accounting

Independent analysis by Americans for Financial Reform Education Fund (AFREF) and Private Equity Stakeholder Project (PESP) ("Brookfield's Climate Paradox," 2024) found that Brookfield, including via its Oaktree subsidiary, holds at least 215 fossil-fuel assets across 31 portfolio companies — drilling, transportation and power generation. Their estimate of Brookfield's financed fossil-fuel emissions: approximately 159 million tonnes CO₂-equivalent annually, against Brookfield's own disclosed figure of approximately 11.8 million mt CO₂e — roughly 14 times higher than what the firm reports. The AFREF/PESP report explicitly identifies Carney's role: "Brookfield embodies the definition of greenwashing… Carney has frequently called on the financial industry to disclose emissions and decarbonize its dirtiest emitters, and [yet]…"

3.3 The Brookfield Global Transition Fund (BGTF) and "Transition Finance"

Brookfield's first Global Transition Fund (~$15bn) and the second ($10bn first close in 2024) include, by Brookfield's own disclosure and independent analysis (Shift Action; Investors for Paris Compliance; Corporate Knights), substantial allocations to:

• Carbon capture and storage attached to ongoing fossil-fuel operations (over $1bn in BGTF I);
• LNG infrastructure (which Brookfield Infrastructure's CEO publicly described as a "transition fuel," a designation rejected by mainstream lifecycle analysis);
• An attempted (and shareholder-rejected) acquisition of Australian utility Origin Energy on terms that the New South Wales government required would extend rather than retire its coal plant.

Adam Scott (Executive Director, Shift Action): "LNG is not a transition fuel, and does not belong in any fund being advertised as climate- or transition-aligned. It cannot reduce emissions on a lifecycle basis in power generation even compared with coal." Investors for Paris Compliance (2025): "The funds currently lack any mechanisms which ensure that capital allocated to transition opportunities are invested in genuine alignment with the energy transition, or with net zero. There are no internationally recognized best practices identified in the funds' guiding document."

This is the structural critique: "transition finance" as practised by BGTF reclassifies fossil-fuel assets as green by virtue of being held in a fund with "transition" in its name, rather than because the underlying asset trajectory is consistent with a Paris-aligned pathway.

3.4 The Math of Net Zero by 2050

Independent quantitative work (UK FIRES; Anderson 2015; Climate Analytics; Tyndall Centre) converges on a stark conclusion. Starting from 2025 emissions of approximately 40 GtCO₂/year and a remaining 1.5°C budget of 130–170 GtCO₂:

• Linear decline to net zero by 2050 would require average annual cuts of roughly 1.6 GtCO₂ — a sustained reduction of ~4–5% per year of current emissions.
• A 43% cut by 2030 (IPCC 1.5°C pathway) requires emissions to fall from ~40 GtCO₂ in 2025 to ~22 GtCO₂ by 2030, equivalent to ~10% reduction per year.
• The only historical precedent for double-digit single-year emissions cuts is the 2020 COVID-19 lockdown (–5.4% globally), and the 1990s economic collapse of the former Soviet Union. The IPCC SR1.5 itself notes (Chapter 2) that "if emissions do not start declining in the next decade, the point of carbon neutrality would need to be reached at least two decades earlier to remain within the same carbon budget."

Against this backdrop, GFANZ-style voluntary finance commitments have produced no measurable bending of the curve. Atmospheric CO₂ rose 3.75 ppm in 2024 — the largest annual increase ever recorded.

3.5 The Carbon Budget Endgame

The most consequential single number for evaluating Carney's framework is the remaining 1.5°C carbon budget. The Forster et al. Indicators of Global Climate Change 2025 update in Earth System Science Data (DOI: 10.5194/essd-17-2641-2025) — the most authoritative annual update between IPCC cycles, with co-authors including Joeri Rogelj, Pierre Friedlingstein, Myles Allen, Glen Peters, and Zeke Hausfather — places the remaining budget at 130 GtCO₂ from January 2025, with 1.5°C exceedance projected within 3–4 years at current emissions. The Global Carbon Project's December 2025 budget (170 GtCO₂; ~4 years) is broadly consistent.

Of the IPCC AR6 WGI 2020 starting budget of 500 GtCO₂ for a 50% chance of 1.5°C, approximately 75% was spent in the five years from 2020 to 2024, the period of fastest GFANZ growth.

The policy implication is that net-zero-by-2050 is, on the central scientific estimates, insufficient for 1.5°C without negative emissions at scales not currently demonstrable. The TCFD/GFANZ/voluntary-carbon-market architecture is designed around the 2050 horizon but operates in a physical regime in which the 1.5°C budget will be exhausted in the late 2020s. As the Indicators study lead author Piers Forster put it: "Climate policies and the pace of climate action are not keeping up with what's needed to address the ever-growing impacts." Joeri Rogelj (Imperial / Grantham): "The window to stay within 1.5°C is rapidly closing."

3.6 The Commercial-Opportunity Dimension

A neutral summary of the institutional record is that the framework Carney built generated significant commercial opportunities for the institutions he served:

• TCFD created a large compliance-services industry (legal, audit, advisory) without producing demonstrable emissions reductions in the peer-reviewed literature beyond modest, contested effects.
• TSVCM projected a 15x expansion of a voluntary offset market subsequently shown by peer-reviewed science to be 80–94% over-credited.
• GFANZ member banks increased fossil-fuel financing to a record $869 billion in 2024 while remaining (until late 2024) within an alliance Carney chaired.
• Brookfield's "Transition" funds raised tens of billions of dollars while continuing to hold assets across the fossil supply chain, with disclosed emissions an order of magnitude below independent estimates.
• Carney himself moved from public office (UK PM Climate Adviser, UN Special Envoy) directly into Brookfield (where he became Chair and Head of Transition Investing) and then back into elected office as Canada's Prime Minister (2025).

This is not in itself proof of bad faith. It is, however, the empirical record against which the framework must be judged on its own stated goal: reducing atmospheric carbon dioxide.

Source Quality and Epistemic Status

Source Quality and Epistemic Status

A long-form essay built on this evidence base should be transparent about source types:

Peer-reviewed primary science (strongest)

• Anderson, K. (2015). "Duality in climate science." Nature Geoscience 8, 898–900.
• Anderson, K. & Peters, G. (2016). "The trouble with negative emissions." Science 354, 182–183.
• West, T.A.P., Börner, J., Sills, E.O., Kontoleon, A. (2020). "Overstated carbon emission reductions from voluntary REDD+ projects in the Brazilian Amazon." PNAS 117(39), 24188–24194.
• West, T.A.P. et al. (2023). "Action needed to make carbon offsets from forest conservation work." Science 381, 873–876.
• Badgley, G. et al. (2022). "Systematic over-crediting in California's forest carbon offsets program." Global Change Biology 28, 1433–1445.
• Tang, S. et al. (2025). "Tropical forest carbon offsets deliver partial gains amid persistent over-crediting." Science.
• Creutzig, F. et al. (2021). "Considering sustainability thresholds for BECCS in IPCC and biodiversity assessments." GCB Bioenergy.
• Harper, A.B. et al. (2018). "Land-use emissions play a critical role in land-based mitigation for Paris climate targets." Nature Communications.
• Forster, P. et al. (2025). "Indicators of Global Climate Change 2024." Earth System Science Data. DOI: 10.5194/essd-17-2641-2025.
• Friedlingstein, P. et al. (2025). Global Carbon Budget 2025, Earth System Science Data.

IPCC and primary policy/regulatory documents

• IPCC (2018) Global Warming of 1.5°C (SR1.5), Chapter 2.
• IPCC (2021) AR6 Working Group I, Chapter 5; Summary for Policymakers.
• IPCC (2022) AR6 Working Group III, Summary for Policymakers, esp. B.6, C.1, C.11.
• UK FIRES (2019) Absolute Zero report (Allwood et al., University of Cambridge et al.).
• TSVCM (2021) Phase II Final Report.
• TCFD (2017) Recommendations of the Task Force on Climate-related Financial Disclosures.

Senior-scientist commentary / non-peer-reviewed expert opinion

• Dyke, J., Watson, R.T., Knorr, W. (April 22, 2021). "Climate scientists: concept of net zero is a dangerous trap." The Conversation. This is opinion by senior scientists (including a former IPCC chair) but is not itself peer-reviewed.
• Scientists for Global Responsibility commentary (Parkinson).
• Bill Hare, Ben Caldecott, Wolfgang Kuhn quoted commentary on Brookfield.

Investigative journalism (high-quality)

• Guardian / Die Zeit / SourceMaterial Verra investigation (January 2023).
• Greenpeace Unearthed Brookfield investigation (February 2021).
• Banking on Climate Chaos annual reports (Rainforest Action Network et al., 2016–2025) — methodology peer-reviewed by Urgewald/GOGEL; data from Bloomberg and LSEG.

Non-peer-reviewed expert essays (high public impact, contested epistemic status)

• Tariq Fancy (2021–22). "The Secret Diary of a 'Sustainable Investor.'" Self-published on Medium.

NGO/advocacy analysis (require contextualisation)

• AFREF / PESP, "Brookfield's Climate Paradox" (2024).
• Reclaim Finance NZBA assessments.
• Investors for Paris Compliance, Shift Action analyses of BGTF.

Caveats

Several findings remain contested. Verra's January 2023 Technical Review disputes the methodology of the West et al. (2023) analysis underlying the Guardian investigation; subsequent peer-reviewed work (Tang et al., 2025) found slightly higher project effectiveness than West et al. but still concluded only ~13% of issued credits were defensible. BECCS land requirements vary across IPCC SR1.5 pathways (P1 vs P4) by an order of magnitude. DAC cost estimates depend heavily on assumed learning rates that have not been empirically validated. Bingler et al.'s "cheap talk" finding on TCFD is methodologically contested by Yu et al. (2025), though both agree disclosure quality remains uneven. The 130-GtCO₂ remaining-budget figure has substantial geophysical uncertainty (±220 GtCO₂ at the 17–83% range).

These caveats do not, however, alter the central empirical finding: through the entire decade in which the Carney financial-climate architecture was built, atmospheric CO₂ rose monotonically, fossil-fuel emissions reached record highs, and the 1.5°C carbon budget was consumed at a rate that puts exceedance within 3–4 years of the present date.

Conclusion: The Forensic Case in One Paragraph

The net-zero finance framework Mark Carney built rests on three propositions that the available evidence does not support. First, that "net zero" — operationalised through offsets and assumed future negative emissions — is consistent with physical climate stability: this is rejected by peer-reviewed work from Anderson (2015), Creutzig et al. (2021), Harper et al. (2018), West et al. (2020, 2023), Badgley et al. (2022) and Tang et al. (2025), as well as by senior scientists including former IPCC Chair Robert Watson, and by engineering analyses including UK FIRES Absolute Zero (2019). Second, that disclosure-and-portfolio-based financial instruments — TCFD, ESG investing, GFANZ, voluntary carbon markets — produce measurable real-economy emissions reductions: this is contradicted by atmospheric CO₂ data (399.4 ppm in 2015 → 422.8 ppm in 2024, with the largest annual rise on record in 2024), by Global Carbon Project emissions data (record 38.1 GtCO₂ projected for 2025), by Banking on Climate Chaos fossil-fuel financing data ($7.9 trillion since Paris; $869 billion in 2024 alone), by peer-reviewed academic work on portfolio decarbonisation finding that "re-weighting actions … are likely too small to have a meaningful impact," and from the inside by Tariq Fancy's resignation and "dangerous placebo" critique. Third, that Carney's specific institutional contributions worked on their own terms: this is falsified by the Brookfield "net zero today" episode of February 2021 (retracted within two weeks under near-unanimous climate-science criticism), by independent analyses showing Brookfield's actual financed emissions roughly 14 times its disclosed figure, by the post-2024 abandonment of the Net-Zero Banking Alliance by every major US bank that founded it, and by the collapse of the voluntary carbon market the TSVCM proposed to scale 15-fold after peer-reviewed and journalistic exposure of 80–94% over-crediting in its dominant credit type. With the 1.5°C carbon budget now at approximately 130–170 GtCO₂ — roughly 3–4 years at current emissions — the evidence is that the Carney framework did not produce, has not produced, and on the trajectory of its own actual outputs cannot produce the atmospheric outcome it promised, while it has generated significant commercial opportunity for the institutions that built and operated it.