By Dennis Clare

The word is indeed shocking.
But as soul who has been a delegate to the international ozone negotiations nether the Montreal Protocol—the treaty that guided the global phase-out of CFCs as well as is currently managing the phase-out of the HCFCs that replaced them—I’m confident that this episode volition hold out promptly addressed as well as plough out to hold out some other success story from what is widely recognized as the world’s most effective environmental treaty. Where I am non nearly as confident is on achieving the goals of the Paris Agreement on climate change, which I was too involved inward negotiating. Fortunately, in that location are some of import lessons that tin hold out learned from this episode as well as from the Montreal Protocol‘s overall approach to technological transitions that tin hold out helpfully applied inward the endeavor to bound climate change.
First, some background.
A pothole on the route to recovery. On May xvi of this yr came the surprise proclamation from US regime researchers that analysis of air samples showed that the charge per unit of measurement of decrease of chlorofluorocarbon concentrations had slowed past times 50 percent. Influenza A virus subtype H5N1 squad of scientists published a newspaper inward Nature detailing their finding that a 25 per centum spike had occurred since 2012 inward emissions of CFC-11, a chemic for which countries had reported unopen to zero production since 2006. “We were shocked, no doubt,” said Stephen Montzka of the National Oceanic as well as Atmospheric Administration, as well as Pb writer of the paper. “We couldn’t sympathize how on footing emissions would hold out increasing when production had been zero for therefore long.” The authors’ information strongly suggested the emissions were from eastern Asia.
So, inward June, as the New York Times as well as the environmental impact assessment investigations wrapped upwards their investigations, they idea that they had helped to solve the atmospheric mystery described inward the Nature paper. The New York Times article fifty-fifty included the made-for-TV minute of Chinese authorities showing upwards at a manufacturing flora spell its possessor was admitting their violations to investigators on the scene. The authorities ordered the manufacturing flora closed. It was pretty high drama for the unremarkably technocratic public of environmental compliance as well as enforcement. But it would hold out upwards to the parties of the Montreal Protocol to decide how to address the international controversy.
The protocol. The Montreal Protocol has been widely hailed as the gilt touchstone when it comes to international environmental treaties. Designed to protect the ozone layer, it has been ratified past times all countries as well as has overseen the worldwide phase-outs of ozone-depleting chemicals such as chlorofluorocarbons (CFCs), as well as and therefore the less ozone-depleting but soundless harmful hydrochlorofluorocarbons (HCFCs) that had replaced them. These phase-outs direct hold greatly reduced the observable hole inward the ozone layer as well as set it on a path to total recovery past times mid-century. Moreover, because many of these ozone-depleting chemicals are too extremely strong greenhouse gases—causing hundreds to thousands of times to a greater extent than warming per kilogram than carbon dioxide—the Montreal Protocol has too played a major as well as largely underappreciated role inward reducing global warming. Scientists approximate that the amount of greenhouse gases that direct hold been avoided past times the Montreal Protocol as well as related ozone-protection efforts is the equivalent of to a greater extent than than 200 billion metric tons of CO2, which is many times to a greater extent than than direct hold been avoided through international climate agreements to date.
The starting fourth dimension chance for the parties of the Montreal Protocol to address the CFC-11 number came at the treaty body’s Open-Ended Working Group coming together final calendar month inward Vienna, Austria. Although the number had emerged therefore late that it had non fifty-fifty been included on the agenda, the executive secretarial assistant of the Ozone Secretariat focused on the urgent demand to resolve the affair inward her opening remarks. Developed countries that are donors to the Montreal Protocol’s Multilateral Fund, including the United States, expressed particular alert well-nigh the observed increase inward CFCs, because they had funded what was supposed to hold out a consummate transition out of CFCs. In addition, dozens of both developed as well as developing province parties—an unprecedented number, according to experts—joined inward co-sponsoring a proposed determination to farther investigate the matter.
For its part, mainland People's Republic of China seemed by as well as large willing to bring the findings inward the Naturepaper, but emphasized that dissimilar what had appeared inward that peer-reviewed journal, the EIA’s findings were non scientific, as well as may direct hold been obtained unlawfully. (China has the world’s largest polyurethane foam market, accounting for well-nigh 40 per centum of the world’s consumption. The province was responsible for nearly all East Asian production of CFC-11 as well as closely related chemicals earlier they were banned.) China’s representatives said that domestic authorities were aware of—and had already addressed—smaller-scale issues of CFC-11 use, but stressed that in that location was no large-scale domestic CFC-11 use. mainland People's Republic of China too declared that its ain investigations of the factories mentioned inward the environmental impact assessment study constitute no utilisation of CFC-11. environmental impact assessment counters that workers at those factories had already explained the diverse agency they utilisation to evade detection past times Chinese authorities.
Diving deeper. Here is where the fleeting hope of an open-and-shut instance disappears into a growing heap of hard questions. For instance, make the environmental impact assessment findings, if accurate, explicate all the CFC-11 emissions observed past times Montzka’s team? (Montzka thinks in that location is non yet plenty quantitative information to tell.) Since CFCs used inward products are non chop-chop emitted all at once, but rather leak gradually over time, wouldn’t the around xiii metric kilotons of annual emissions the scientists observed imply that total annual CFC-11 production as well as utilisation is potentially many times higher, potentially 100 kilotons or to a greater extent than annually? And since the also-banned CFC-12 is unremarkably co-produced amongst CFC-11, is CFC-12 existence used or emitted as well? Could it fifty-fifty hold out that CFC-12 is what is existence produced for utilisation as well as that the observed CFC-11 emissions are from venting the CFC-11 that results from producing CFC-12? These are just a few of the technical questions.
The underlying question, however, as well as the 1 amongst the greatest potential implications for other multilateral environmental efforts, is socio-economic: Why is CFC-11 existence made at all, when it had already been banned for years? The manufacturing flora workers interviewed past times environmental impact assessment claimed that CFC-11 is both cheaper than, as well as superior to, the legal alternatives for foam-blowing, peculiarly when it comes to large, hard, industrial foams inserted inward appliances as well as other applications. If so, as well as therefore the utilisation of legal alternatives may evidence a challenge elsewhere.
Part of what’s troubling hither is that for a phase-down that has been inward total termination for decades, effective alternatives were supposed to hold out widely available for reasonable prices past times now. Along amongst supporting the actions of developing countries through the Multilateral Fund, this is 1 of the principal things that the Montreal Protocol has prided itself on: that its phase-downs of controlled substances direct hold sent timely signals to the marketplace to drive the evolution as well as commercialization of cost-effective, environmentally friendly alternatives to the substances regulated. So why aren’t such alternatives existence used? Is it a affair of cost, availability, lax enforcement or something else?
What lessons tin nosotros acquire from this? As the parties to the Montreal Protocol map the adjacent steps, it is becoming clear that getting answers may hold out a irksome process. The draft determination from Vienna calls for the Montreal Protocol’s Scientific Assessment Panel to laid a study past times the terminate of adjacent yr amongst farther information well-nigh the emissions observed, including information from different monitoring stations than were used past times the Montzka team. This information may aid to to a greater extent than exactly position the locations of whatsoever CFC-11 emissions. It too calls for the treaty body’s Technical as well as Economic Assessment Panel to investigate the potential sources of the CFC-11 emission—including possible ongoing usage such as inward foam-blowing, or leakage from banks of one-time or discarded equipment containing CFCs. Furthermore, it calls upon parties to submit whatsoever relevant scientific information they may have, as well as calls upon scientific as well as atmospheric organizations to drib dead on to examine the number as well as submit whatsoever appropriate information for inclusion inward the scientific discipline report. (This draft determination prepared inward Vienna volition demand to hold out formally adopted past times the Meeting of the Parties to the Montreal Protocol inward Quito, Republic of Ecuador inward November.)
At the same time, mainland People's Republic of China is in all probability to undertake a to a greater extent than thorough investigation of the province of affairs on the ground, including both the truthful extent of possible CFC-11 utilisation as well as where it is existence produced. Perhaps mainland People's Republic of China volition discover that the environmental impact assessment study was essentially correct: that foam-blowing in all probability accounts for the observed emissions of CFC-11. It could as well as therefore undertake a comprehensive endeavor to fully eliminate whatsoever remaining use. But if mainland People's Republic of China does non discover meaning domestic CFC-11 use, or if it does non discover plenty to trouble organisation human relationship for the observed emissions, the mystery may suffer as well as the investigation may demand to expand into other countries.
The answers to these questions may let on of import lessons for the Montreal Protocol—lessons that tin inform implementation of the global phase-out of HCFCs soundless underway, as good as the late negotiated global phase-down of hydrofluorocarbons (HFCs). (Though non ozone-depleters, HFCs are super-potent greenhouse gases. Accordingly, this grade of chemicals volition drib dead the target of the Montreal Protocol’s starting fourth dimension phase-down aimed at protecting the climate system, non the ozone layer.)
For example, it may hold out fourth dimension to re-examine the methodologies as well as criteria of the Montreal Protocol’s fiscal back upwards system. Funders inward particular direct hold a right to hold out frustrated if they are paying to back upwards others’ compliance as well as it isn’t happening. But all parties direct hold an involvement inward determining whether fundamental sectors such as foam-blowing were adequately addressed; whether smaller enterprises may direct hold been neglected inward the project-based funding of the Multilateral Fund; as well as whether in that location was sufficient follow-up amongst production facilities after supported projects were completed.
Finally, it is worth squall for what, if any, are the implications of this Montreal Protocol story for efforts to implement the Paris Agreement on climate change. In many ways, the Paris Agreement is a completely different beast than the Montreal Protocol. Most obviously, the Paris understanding addresses emissionsof greenhouse gases—mostly waste matter gases such as carbon dioxide—from innumerable uses across almost all economical sectors. The Montreal Protocol, on the other hand, addresses the production as well as consumption of industrial gases intentionally manufactured for specific purposes inward a few sectors, such as solvents, foam-blowing, as well as refrigeration. Also quite different, the Paris Agreement consists of voluntary measures—not universally binding reduction steps—and consequently has no formal compliance regime. Perhaps most important, although the Paris Agreement has an affiliated fiscal establishment (the Green Climate Fund), it was non designed to render the comprehensive back upwards for technological transitions that the Multilateral Fund has provided to Montreal Protocol parties.
Top-down vs bottom-up. Indeed, these less-exacting features of the Paris Agreement were the ultimate resolution of a core dilemma that had dogged climate negotiations since the ‘90s. The public could set forth a top-down regime, amongst national emissions reduction targets based on a politically distributed carbon budget that was scientifically estimated to bound long-term global average temperature ascent to an agreed level, such as two degrees Celsius. But fewer countries would hold out inclined to bring together such a strict regime, peculiarly major emitting countries similar the the States as well as China.
Or the public could aim for a treaty that would ensure broader, fifty-fifty universal, participation, past times featuring a bottom-up approach, inward which countries would set forth voluntary contributions based on their ain domestic determinations of capacity as well as feasibility. With the Paris Agreement, the public opted for the latter approach, recognizing that initial contributions would hold out inadequate to accomplish the agreed-upon long-term temperature goals, but amongst the hope that the inclusion of all major emitters as well as the universality of participation could, over time, inspire increasing efforts that could somehow hold such goals inside reach.
Hence, the mechanisms as well as performance of the Montreal Protocol as well as the Paris Agreement are almost completely divergent. But the underlying actions they are meant to motivate— achieving the greenhouse gas reductions they envision—remain at to the lowest degree by as well as large similar: the development, commercialization as well as deployment of effective as well as affordable technologies as well as practices to supervene upon the predominant, but environmentally harmful, technologies as well as practices shortly used. Therefore, non-compliance inward either regime could hold out considered as a symptom of the failure to fully accomplish 1 or to a greater extent than elements of this objective; for inward a public amongst as effective, available as well as affordable technologies as well as practices, in that location is lilliputian incentive to cheat past times regressing to otherwise obsolete technologies. And if the cost of novel technologies remains slightly higher than the polluting ones, as well as therefore it is the obligation of enforcement authorities to ensure that stakeholders brand that extra investment to protect the environment, at to the lowest degree where regulations are inward house as well as parties direct hold committed to make so.
Ultimately, the issues hither are deeper than compliance alone, as well as broader than the ozone regime. Addressing the challenge of climate alter requires total worldwide commitment to a rapid transition of the global liberate energy scheme as well as other technological transitions that nosotros are far from labor as yet—let lone completing. We shortly direct hold globally agreed-upon temperature goals that cannot hold out achieved amongst acquaint national targets, national targets that cannot hold out achieved amongst acquaint national policies, as well as national policies that are frequently non fully implemented. Influenza A virus subtype H5N1 recently released Nature study puts the odds of achieving the Paris Agreement’s two degrees Celsius destination at 1-in-20, as well as its 1.5 degrees Celsius destination at 1-in-100. Another study, from the Proceedings of the National Academy of Sciences, estimated that in that location was a v per centum peril of catastrophic warming past times 2050 as well as a smaller peril that humans could fifty-fifty hold out wiped out inside 100 years. Any meaning divergence from the small-scale contributions that countries direct hold therefore far pledged nether the Paris Agreement would ensure failure inward achieving the agreed-upon destination of limiting global average temperature ascent to less than two degrees Celsius. Indeed, coming together such goals would require countries to massively better their near-term targets as well as and therefore fully accomplish them.
The goodness word is that nether both the Montreal Protocol as well as the Paris Agreement, atmospheric observations tin hold out made to decide if the policies adopted are having their desired effect. There is no demand to trust when you lot tin verify. But this offers lilliputian relief from the bad word that continues to pour inward from other scientific observations as well as from emissions reductions models.
As amongst protecting the ozone layer, solving the climate challenge remains a affair of taking the necessary actions on the footing as well as doing therefore comprehensively across all sources of pollution. But amongst climate change, in that location is the peril of passing tipping points that are both irreversible as well as beyond the aeroplane at which feedbacks could get the natural scheme to shift, driving farther climatic changes—for example, woods carbon or permafrost marsh gas emissions—beyond whatsoever human capacity to control. This greatly raises the stakes as well as the urgency of the climate challenge.
Learning afterward from atmospheric monitoring well-nigh where nosotros went incorrect volition for certain hold out less helpful than similar a shot applying at scale what nosotros direct hold learned already from the world’s most successful environmental treaty—that setting targets is less of import than facilitating the necessary work. The fundamental to achieving our increasingly improbable climate goals is to follow the representative of the Montreal Protocol, non inward setting top-down targets or inward edifice a strong compliance regime, but inward making the investments needed to human activity now: to ensure that technologies are developed as well as shared; that needed capacity is built inward places where it is lacking; as well as most importantly that fiscal back upwards is offered for required actions that would non otherwise bring place. This sort of labor would hold out massive as well as enormously expensive. The alternative, however, is just unacceptable; to most people it soundless may fifty-fifty hold out unthinkable. But it’s nonetheless where we’re headed unless nosotros drastically as well as similar a shot alter course.
Buat lebih berguna, kongsi: