Ratified by almost every state - a level of agreement the binding Kyoto Protocol never reached - but built on voluntary Nationally Determined Contributions: states set their own targets and face no penalty for missing them. The ratchet-and-review COP process applies naming-and-shaming pressure instead.
Paris achieved what the binding Kyoto Protocol never did: 195 states signed, with annual COPs, five-yearly global stocktakes and transparent reporting under the UNFCCC agreed at Rio in 1992. The first Global Stocktake concluded at Dubai COP28 in 2023 - the review machinery is real and it runs.
Use this as the agree side's opening fact in any climate-governance paragraph: the architecture exists, before you turn to what it has delivered. The bottom half had a seventy-year head start - the Bretton Woods machinery dates from 1944, Paris from 2015.
Each state writes its own Nationally Determined Contribution and faces nothing but naming-and-shaming if it misses it. The design was deliberate - Kyoto's binding targets lost the United States, which never ratified, and Canada, which withdrew - so Paris traded enforcement for universality.
Contrast the bottom half of the grid: IMF conditionality releases money in tranches against met conditions. Climate governance has no tool remotely like it.
Hardin's 1968 tragedy of the commons runs straight through the NDC system: the benefit of burning falls to one state, the cost is shared by all, so states set soft targets and still miss them. China's NDC commits only to peaking emissions before 2030, not to absolute cuts.
The UNEP Emissions Gap Report 2024 showed the gap between current policy and the Paris pathway widening, not narrowing - free-riding measured, not just predicted.
The outcome numbers are stark: CO2 concentrations passed 420ppm in 2023, the highest in roughly three million years, and 2024 was the first calendar year above the Paris 1.5C threshold on annual average. Global CO2 emissions hit a record high in 2023.
The defence is the counterfactual: pre-Paris projections of 4-5C of warming have been replaced by trajectories of around 2.7C if pledges are met. Worse than the target, far better than nothing - a balanced AO2 point.
The climate justice problem in one line: developed states caused most cumulative emissions while the worst impacts fall on small island states, low-lying coastal nations and the Sahel. The Copenhagen pledge of $100 billion a year in climate finance, made in 2009, was missed for over a decade and only met in 2022.
Compare the bottom half: trade-led growth at least delivered its gains to hundreds of millions in the developing world, even if unevenly.
The world's second-largest emitter has withdrawn from Paris twice in eight years: Trump in 2017, Biden rejoining in 2021, then a second withdrawal order signed on day one in 2025. The Bush administration never ratified Kyoto either.
A voluntary regime depends on its biggest members modelling compliance, so one election in one capital can swing the credibility of the whole - a fragility no body on the poverty half of this grid shares.
The 2023 examiner report framed the topic as almost universal commitment set against the perceived inadequate actions of states - and that framing decides the verdict. Paris is the best climate regime the system has produced, and emissions have risen throughout its life.
Read this cell against the trade-led growth verdict below it: the comparison column is where the essay paragraph starts.
The annual summits keep climate on the agenda, and the Loss and Damage fund agreed at the 2022-23 COPs shows the regime can still develop - the first mechanism aimed at compensating the states hit hardest. Funding it is the next fight.
The COP process has run annually since the UNFCCC was agreed at Rio in 1992 - Glasgow 2021, Sharm El-Sheikh 2022 and Dubai 2023 are the recent milestones, with the first Global Stocktake concluded at COP28. As standing machinery it is real: the regime meets, reviews and develops every year.
The Loss and Damage fund, agreed in principle at COP27 and operationalised at COP28, shows the process can still build new institutions three decades in.
Summit texts are watered down before they bind anyone: Glasgow COP26 changed coal phase out to phase down under Indian and Chinese pressure, and Saudi Arabia, Russia and the OPEC bloc have repeatedly blocked stronger fossil-fuel language. COP28 managed only a reference to transitioning away from fossil fuels.
Contrast IMF conditionality on the poverty half: there the words come with money attached, and the money comes with consequences.
The pattern repeats across the named pledges: the 2009 Copenhagen promise of $100 billion a year in climate finance was missed for over a decade and only met in 2022, and the 2021 Glasgow Declaration on Forests committed 145 states to halting deforestation by 2030 - mid-decade reviews show the target slipping.
Use one of these in a paragraph as the gap between summit pledge and delivery: it is the regime's signature weakness.
The UNEP Emissions Gap Report 2024 showed the gap between current policy and the Paris pathway widening, and global CO2 emissions reached a record high in 2023. The first Global Stocktake at COP28 confirmed the world is well off track for 1.5C - the regime's own review delivered the disagree side's evidence.
Pair this with the poverty half's headline below: extreme poverty fell from roughly 38% to around 9% since 1990 while the climate curve kept rising.
The Loss and Damage fund - agreed in principle at Sharm El-Sheikh COP27 in 2022 and operationalised at Dubai COP28 in 2023 - is the first mechanism built to compensate vulnerable states for impacts they did not cause. It gives the principle of common but differentiated responsibilities, formalised at Rio in 1992, a financial instrument at last.
The qualifier for AO3: pledges to the fund remain a small fraction of the estimated need.
COP28 in Dubai was chaired by Sultan al-Jaber, head of the UAE national oil company ADNOC, and recordings emerged of him questioning the science of fossil fuel phase-out before the talks. Glasgow's coal language was softened under Indian and Chinese pressure; the Saudi and Russian bloc has blocked stronger texts repeatedly.
The producer veto is the great-power problem in its climate form - the regime's strongest members are also its biggest obstacles.
Fifty years of summits from Stockholm 1972 to Dubai 2023 have built architecture without bending the emissions curve - the 2023 examiner report's contrast of universal commitment with inadequate action holds across the whole period.
In an essay, concede the process is a genuine achievement (the regime meets, develops, and produced Loss and Damage) before judging it on the outcome it exists to change.
The success story the topic returns to: CFCs banned, the ozone hole slowly closing, universal ratification. The conditions were unusually favourable - few substances, few producers, available alternatives - but Montreal proved binding environmental agreement is possible.
Montreal has been ratified by every UN member state, with review machinery that has tightened the phase-out schedules over time. Kofi Annan called it perhaps the single most successful international agreement to date.
Use it as the proof case that the institutional model can work - then explain why its conditions (few substances, few producers, available alternatives) do not transfer to carbon.
Unlike Paris, Montreal's phase-out schedules were binding and they held: CFC production fell by more than 98% between 1986 and 2010. No major producer walked away the way Canada walked away from Kyoto.
The AO3 point: binding environmental enforcement is possible when the cost of compliance is low and substitutes exist - which is exactly what carbon lacks.
States complied because compliance was cheap: a handful of substances, a handful of producers, and alternatives to CFCs already available. The free-rider temptation that wrecks climate compliance barely existed.
This is the cell that explains the whole environment half of the grid - compliance follows interests, and Montreal is the one place where interests aligned.
The ozone hole over Antarctica has begun to recover - the one unambiguous, outcome-level win in fifty years of environmental governance. CFC production is down more than 98% since 1986.
In an essay, the Montreal-Paris pairing is the examiner-rewarded comparison: the same multilateral system produced a closing ozone hole and a rising emissions curve, so the variable is the problem, not the machinery.
The protocol funded developing states through the transition rather than asking them to bear the cost alone - the practical application of the burden-sharing principle that the climate regime later formalised as common but differentiated responsibilities at Rio in 1992.
The contrast with climate finance is sharp: Montreal's funding worked at small scale; the $100 billion climate pledge took over a decade to meet.
Every major power backed the phase-out, and the treaty reached universal ratification - no producer veto, no withdrawal-and-return whiplash, no equivalent of the US leaving twice as it has left Paris.
The realist reading: Montreal succeeded because no great power's core interests were threatened. That is praise for the outcome and a warning about how rarely the conditions recur.
The success story the 2023 examiner report's topic framing makes room for: binding, universal, and measurably effective - CFCs down 98%, the ozone hole closing. It proves the system can deliver when interests align and alternatives exist.
Set it against the poverty half's verdicts below: Montreal is the environment half's only row that matches the delivery record of the global economic institutions.
Funds infrastructure and poverty reduction on a scale no single donor matches, and has softened conditionality and re-weighted towards poverty since the structural adjustment era. Criticised for weighted voting and Western dominance - the governance half of the harm-or-good debate.
Created at Bretton Woods in July 1944 alongside the IMF, the World Bank funds infrastructure and poverty reduction on a scale no single donor matches - permanent machinery that exists between crises, not just at summits.
The contrast with the environment half: the climate regime's institutions meet annually; the Bank's lend continuously.
World Bank lending carries conditions, and in the structural adjustment era of the 1980s and 1990s those conditions - liberalisation, privatisation, spending cuts - reshaped whole economies. Whatever the criticism, the pressure was real in a way no climate pledge has ever been.
Enforcement through money is the poverty half's recurring advantage over the environment half's enforcement through embarrassment.
Borrowers comply because access to development finance depends on it - there is no equivalent of setting your own NDC and missing it for free. The Bank's project terms hold because the money is disbursed against them.
The AO2 point for the comparison: compliance is bought with finance on this half of the grid, and with nothing on the other.
Decades of funded infrastructure and poverty programmes sit behind the headline fact that extreme poverty fell from roughly 38% of the world's population in 1990 to around 9% - about 1.1 billion people, the largest reduction in human history. The 2023 examiner report identified the positive actions of the IMF, WTO and World Bank as the strong answer's material.
The honest qualifier: trade and growth, especially China's, did more of the lifting than Bank lending alone.
Voting is weighted by economic size, and by convention the World Bank is led by an American and the IMF by a European - the democratic deficit charge in the harm-or-good debate. The borrowers the Bank exists for sit furthest from control of it.
Balance it: concessional lending aims at the poorest, and both bodies have softened conditionality and re-weighted towards poverty since the structural adjustment era.
Western leadership is built into the design: weighted voting keeps the funders in charge, and the 2023 examiner report named Western dominance of the IMF, World Bank and WTO as the standard counter-argument. The same dominance is also why the machinery is funded and decisive.
The exam point cuts both ways - legitimacy problem and operational strength in one fact.
The harm-or-good balance: real harm through conditionality and an unequal governance structure, but development finance no alternative provides, softened conditions since the structural adjustment era, and a delivery record the environment half cannot match.
The grid's comparison point: the Bank's flaws are distributional; the climate regime's flaws are existential - it does not deliver the outcome at all.
The crisis lender: stabilises states in financial collapse, with conditionality the price. The harm case - austerity hurting the poor, deepened downturns in the structural adjustment era - against the good case: crises stabilised, and conditionality softened since.
Created at Bretton Woods in 1944, the IMF is the standing crisis lender of the global economy: permanent staff, quota resources and surveillance of every member economy, ready before the emergency arrives. Nothing in the environmental regime exists between its summits in the same way.
Use the contrast directly: climate governance convenes; the IMF operates.
Conditionality is the strongest enforcement mechanism in international politics: the loan arrives in tranches and each tranche depends on meeting the agreed conditions. The Paris Agreement has no penalty for a missed target; the IMF withholds the next payment.
This cell is the grid's sharpest single contrast - quote it whenever the essay asks why poverty governance outperforms environmental governance.
A state that calls the IMF has usually run out of alternatives, so compliance is high - not from respect for international law but from arithmetic. The eurozone states in the post-2008 sovereign debt crisis took successive programmes rather than face collapse.
Compare the NDC system above, where missing your own target costs nothing at all.
The harm case is real: structural adjustment conditions - austerity, privatisation, liberalisation - harmed the poorest and deepened downturns, and the 2023 examiner report named the imbalance in development that left many states and people behind. Both bodies have softened conditionality since.
For AO3, the row still favours the poverty half overall: crises get contained in months while emissions have risen through three decades of summits.
The Washington Consensus applied a similar free-market package to very different economies, and the adjustment costs - spending cuts, lost services - fell on those least able to bear them. Sub-Saharan Africa, the 2023 examiner report's standard counter-example, never saw East Asia's poverty reduction.
The same North-South charge runs through the environment half: on both halves, the weakest carry costs the strongest set.
Votes are weighted by quota, so the United States and its allies steer the institution they fund, and the IMF is led by a European by convention. Great-power backing is the reason the machinery is funded, staffed and decisive - and the reason its legitimacy is contested.
Unlike Paris, the IMF cannot be hollowed out by a single election: the funders' interest in stability is permanent.
The defensible line from the harm-or-good debate: the view that the IMF does more harm than good is overstated - real harm through conditionality and unequal governance, but crisis stability no alternative currently offers. Judged on containing crises, it is among the most effective bodies in global governance.
For this grid, the point is comparative: the environment half has no instrument with anything like this record.
The biggest poverty fall in history happened through trade, not aid: hundreds of millions of Chinese citizens moved out of extreme poverty as China integrated into the global economy. The qualifiers: rising inequality within and between states, and the China-shock deindustrialisation of the West.
The Bretton Woods institutions wrote the rules: the IMF and World Bank from 1944, GATT from 1947 through nine rounds of liberalisation, and the WTO from 1995 with binding dispute settlement. China's WTO accession on 11 December 2001 was the single most important event of the modern globalisation story.
The poverty half's machinery is older, deeper and more continuous than anything the climate regime has built since Stockholm 1972.
Lose a WTO dispute and ignore the ruling, and the winner can lawfully retaliate against your exports - enforcement through reciprocal pain, backed by the prize of market access. Trade rules bite because exclusion costs money this quarter.
Carbon has no equivalent: there is no court you can take an emitter to, which is why the environment half's teeth column is almost all minus signs.
States queue to join the system: China negotiated for years to enter the WTO in 2001, and within twenty years its GDP had grown roughly fivefold. Membership of the trading system is worth more than winning any one dispute, so adverse rulings are mostly obeyed.
Compliance is bought with access - the currency the climate regime does not hold.
The headline fact of the whole grid: extreme poverty fell from roughly 38% of the world's population in 1990 to around 9% - about 1.1 billion people, the largest reduction in human history, driven above all by China's integration after 1978 and accelerated by WTO accession in 2001. India, Vietnam and Bangladesh followed the same trade-led route.
Set it against the environment half's outcome line - record CO2 in 2023, 1.5C crossed in 2024 - and the comparison essay writes itself.
The gains were captured unevenly: the top 1% holds around 46% of global wealth (Oxfam, 2024), Western middle-skill wages stagnated, and the China shock identified by Autor, Dorn and Hanson hollowed out manufacturing regions from the US Midwest to the English Midlands. Sub-Saharan Africa now holds the majority of the world's extreme poor.
The AO3 line: poverty governance delivered the aggregate and failed the distribution - a different failure from the environment half, but a real one.
The system was built and run by its strongest members: managed by the United States as post-war hegemon from Bretton Woods in 1944, and supercharged when China chose to join in 2001. Every great power has more to gain inside than outside.
That alignment of great-power interest with the regime's purpose is exactly what climate governance lacks - the structural reason the two halves of this grid diverge.
The strongest delivery record on either half: 1.1 billion people out of extreme poverty since 1990, through a rules system states fight to join. The 2023 examiner report treated the poverty reduction as the central pro-globalisation argument, with figures from individual states the mark of a strong answer.
The judgement line for the whole grid: poverty reduction rode economic self-interest, while climate asks states to pay now for benefits later - which is what the tragedy of the commons predicts they will not do.