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2017 United Nations Climate Change Conference
2017 United Nations Climate Change Conference
2017 United Nations Climate Change Conference
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COP23 FIJI, United Nations Climate Change Conference 2017
Map
Native name UN-Klimakonferenz in Bonn 2017
Date6 November 2017 (2017-11-06)–
17 November 2017 (2017-11-17)
LocationBonn, Germany
Also known asCOP23 (UNFCCC)
CMP13 (Kyoto Protocol)
CMA1-2 or 1.2 (Paris Agreement)
Organized byRepublic of Fiji, Presidency of COP23 (organised in Germany for practical reasons)
ParticipantsParties to the UNFCCC in the Bula Zone and Non-Party Stakeholders in the Bonn Zone
Previous event← Marrakech 2016
Next eventKatowice 2018 →
Websitecop23.com.fjcop23.unfccc.int
Demonstration in Bonn on 4 November 2017
Demonstrators of "Ende Gelände" for action against the climate crisis

The 2017 United Nations Climate Change Conference (COP23) was an international meeting of political leaders, non-state actors and activists to discuss environmental issues. It was held at UN Campus in Bonn, Germany, during 6–17 November 2017.[1] The conference incorporated the 23rd Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC), the thirteenth meeting of the parties for the Kyoto Protocol (CMP13), and the second session of the first meeting of the parties for the Paris Agreement (CMA1-2 or CMA1.2).

The purpose of the conference was to discuss and implement plans about combating climate change, including the details of how the Paris Agreement will work after it enters into force in 2020.[1] The COP was presided over by the Prime Minister of Fiji, Frank Bainimarama, marking the first time a small-island developing state assumed the presidency of the negotiations. The German government provided considerable support that amounted to more than €117 million ($135.5 million) for the construction of the conference facilities.[2]

Although COP23 focused primarily on technical details of the Paris Agreement, it was the first conference of the parties to take place after President Donald Trump announced that the U.S. would withdraw from the agreement.

COP23 concluded with what was called the 'Fiji Momentum for Implementation', which outlined the steps that need to be taken in 2018 to make the Paris Agreement operational and launched the Talanoa Dialogue – a process designed to help countries enhance and implement their Nationally Determined Contributions by 2020.[3]

Background

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See also: United Nations Climate Change conference

Outcomes

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Significant progress was made on the so-called implementation guidelines for the Paris Agreement – commonly known as the Paris Rulebook – which are the details that will determine how the Agreement will work in practice.[4] COP23 resulted in the Fiji Momentum for Implementation, which reinforced the need for urgent action and increased ambition.[3] Parties will need to finalise the Implementation Guidelines at COP24.

At COP23, the Fijian Presidency announced its approach to the Talanoa Dialogue – know formerly as the Facilitative Dialogue. The Talanoa Dialogue is an inclusive and participatory process designed to allow countries to assess the progress made so far toward achieving the long-term of the Paris Agreement, and to help them increase the ambition of their Nationally Determined Contributions by 2020.[5] The Talanoa Dialogue is a precursor to the global stocktakes that will take place every five years, beginning in 2023.

A rift began to emerge between developed and developing countries over pre-2020 action. On the first day of the conference, developing countries, including China and India, asked for an agenda item to discuss this issue, which refers to the emission cuts that developed countries are required to make prior to 2020 under the Kyoto Protocol. Developed countries resisted this request, arguing that this issue was best discussed in other forums.[6] In the end, Parties agreed to hold additional stocktaking sessions in 2018 and 2019 to review progress on reducing emissions, as well as produce two assessments on climate finance in 2018 and 2020. Several European countries, including the United Kingdom, Germany and Spain, ratified the Doha Amendment during COP23.[7] Also during COP23, Syria announced that it would sign the Paris Agreement, leaving the United States as the only country that has rejected the pact.[8]

Developed and developing countries also agreed to hold an experts dialogue in 2018 on the controversial issue of loss and damage, which will explore options for mobilising expertise, technology and support for the victims of climate change and will inform the next review of the Warsaw International Mechanism in 2019.[4]

Parties reached a historic decision on agriculture after six years of deadlock. The agreement established the Koronivia Joint Work on Agriculture to develop and implement new strategies for mitigation and adaptation the agriculture sector.[9]

Parties also finalized the Gender Action Plan and the Local Communities and Indigenous Peoples Platform, both of which are designed to increase the participation of traditionally marginalized groups in the UN Climate Negotiations.[10]

A group of 30 countries including Britain, Canada and New Zealand launched of the Powering Past Coal Alliance with the aim to phase out coal from power generation by 2030.[11][12]

In 2017, as a result of conversations at the conference, India Logan-Riley founded Te Ara Whatu – a Māori youth-led initiative which focuses on climate activism.[13]

Climate Action Zone

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While the formal negotiations took place in the World Conference Centre Bonn – called the Bula Zone – other non-state actors met in the global climate action zone – the Bonn Zone – located in temporary structures built in Rheinaue Park. The Zone was marked by Fiji's Bula spirit and highlighted the groundswell of activity and innovation being undertaken by local governments, cities, businesses, investors, civil society, youth activists, and ordinary men and women.[14]

During COP23, the German Federal Ministry for Economic Cooperation and Development (BMZ) launched the InsuResilience Global Partnership for Climate and Disaster Risk Finance and Insurance Solutions with the contribution of US$125 million. This aim of this initiative is to bring affordable insurance and other financial protection to millions of vulnerable people around the world.[15]

A delegation of sub-national leaders, led by Governor Jerry Brown of California and former New York City Mayor Michael Bloomberg, travelled to Bonn to present America's Pledge, which reports ongoing efforts to uphold the ongoing efforts the U.S.'s emissions reduction target, even after President Trump announced his intention to withdraw the U.S. from the Paris Agreement.[16]

Separately, Michael Bloomberg used pledged $50 million to expand his anti-coal US campaign into Europe.[17]

The Fijian COP23 Presidency also launched the Ocean Pathway Partnership, which will be co-chaired by Fiji and Sweden, in an effort the strengthen the link between global warming and the health of the world's oceans.[18]

Attendees

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More than 30,000 people attended COP23 in Bonn, Germany.[19]

Notable attendees included:

as well as California Governor Jerry Brown, Michael Bloomberg and Arnold Schwarzenegger.

Climate adviser David Banks attended, representing the Trump Administration.

Observers

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The Climate Action Business Association (CABA) delegation to COP23 in Bonn, Germany was spearheaded by Executive Director, Michael Green and included policymakers from the Massachusetts State House: Representative Jim Cantwell, Representative Josh Cutler, Representative Jen Benson, and Senator Michael Barrett, and Green at the climate talks. The delegation was supported by staff from Northeastern University.

Notable quotations

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On Wednesday 15 November 2017, world leaders such as António Guterres (Secretary-General of the United Nations), Emmanuel Macron (President of France) and Angela Merkel (Chancellor of Germany) delivered speeches at the conference.[20]

  • Emmanuel Macron said: "The fight against climate change is by far the most significant struggle of our times" and "Climate change adds further injustice to an already unfair world".[20]
  • Angela Merkel notably said: "Climate change is an issue determining our destiny as mankind – it will determine the well-being of all of us".[20] The reliable exit from burning coal to produce electricity is a key issue for environmental organisations, investments of companies and at the negotiations forming a Jamaica coalition with Greens and Free Democrats after the German federal election in September.[21]
  • Baron Waqa, President of Nauru added that: "It is now time for the developed countries to live up to their responsibilities".[20]

See also

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Notes and references

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

2017 United Nations Climate Change Conference

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from Grokipedia
The 2017 United Nations Climate Change Conference, commonly referred to as COP23, was the twenty-third session of the Conference of the Parties (COP) to the United Nations Framework Convention on Climate Change (UNFCCC), convened from 6 to 17 November 2017 in Bonn, Germany, under the presidency of Fiji—the first small island developing state to lead the proceedings—with logistical hosting by Germany. The gathering involved nearly 30,000 participants, including representatives from 197 parties to the UNFCCC, and centered on advancing the operational details of the 2015 Paris Agreement through negotiations on its rulebook, encompassing elements like transparency in reporting, nationally determined contributions, and cooperative mechanisms for emissions trading. Key decisions included the initiation of the Talanoa Dialogue, a Fiji-inspired inclusive process rooted in Pacific traditions of storytelling to assess collective progress toward Paris goals and catalyze greater ambition in future national climate pledges due in 2020. Parties also adopted the UNFCCC Gender Action Plan, establishing a framework to incorporate gender equality into climate policies and actions across five priority areas. Despite these procedural steps, the conference yielded no binding commitments on emissions reductions or finalized agreements on market-based approaches under Article 6 of the Paris Agreement, with work deferred to future sessions. Controversies highlighted divisions, particularly the United States' subdued official participation amid its June 2017 announcement of intent to withdraw from the Paris Agreement, which critics argued obstructed advancements on climate finance for developing nations and mechanisms for loss and damage from climate impacts. In response, subnational U.S. entities, including states, cities, and businesses, established parallel initiatives like the "We Are Still In" coalition to signal continued domestic engagement in global climate efforts. Developing countries voiced dissatisfaction with the lack of concrete progress on fulfilling pledges for $100 billion annual climate finance by 2020 and enhanced support for adaptation and loss-and-damage provisions.

Background and Pre-Conference Context

Historical Foundations

The United Nations Framework Convention on Climate Change (UNFCCC) was opened for signature at the in Rio de Janeiro on June 4, 1992, and entered into force on March 21, 1994, after ratification by 50 states, establishing a framework for international cooperation to stabilize concentrations at levels preventing dangerous anthropogenic interference with the climate system. The convention categorized countries into Annex I (developed nations with binding reporting obligations) and non-Annex I (developing nations with fewer commitments), reflecting the principle of common but differentiated responsibilities. The inaugural (COP 1) occurred in from March 28 to April 7, 1995, launching the Berlin Mandate to negotiate quantified emission limitation objectives for Annex I parties beyond the year 2000. Subsequent early COPs, such as COP 2 in (1996), emphasized scientific assessments from the (IPCC), but yielded limited binding outcomes until COP 3. At COP 3 in , , from December 1-11, 1997, parties adopted the , committing Annex I countries to average reductions of at least 5% below 1990 levels during the 2008-2012 commitment period, with mechanisms like , joint implementation, and the Clean Development Mechanism to facilitate compliance. The protocol entered into force on February 16, 2005, following Russia's ratification in November 2004, but its effectiveness was constrained by the ' refusal to ratify in 2001 and exemptions for major developing emitters like and , resulting in global emissions rising approximately 50% from 1990 to 2010 despite Annex I reductions averaging 13% by 2012. Post-Kyoto conferences, including COP 7 in Marrakech (2001) for implementation rules and COP 13 in (2007) for the Bali Action Plan on long-term cooperative action, advanced and but failed to extend binding targets, as evidenced by the non-binding at COP 15 in 2009, which recognized a 2°C goal without enforceable commitments. The Platform for Enhanced Action, agreed at COP 17 in , , on December 11, 2011, established the Working Group on the Durban Platform (ADP) to develop a protocol, , or agreed outcome with legal applicable to all parties by 2015 for the post-2020 period, shifting from top-down targets to a hybrid approach. This culminated in the , adopted at COP 21 in Paris on December 12, 2015, which entered into on November 4, 2016, after sufficient ratifications, requiring parties to submit nationally determined contributions (NDCs) updated every five years with progressive ambition to hold global temperature increase to well below 2°C above pre-industrial levels while pursuing efforts to limit it to 1.5°C, alongside provisions for transparency, , and loss and damage. By COP 23 in 2017, 169 parties had ratified the agreement, setting the stage for negotiations on its detailed rulebook, though empirical data indicated that initial NDCs implied warming of 2.7-3.7°C by 2100 if unchanged, underscoring reliance on voluntary enhancements rather than mandatory caps.

Immediate Political Developments

On June 1, 2017, President announced the country's intention to withdraw from the , citing its perceived unfair economic burdens on American workers and industries, including estimated job losses and costs exceeding $2.7 trillion by 2040 according to administration analyses. The formal withdrawal process could not begin until November 4, 2020, due to the agreement's three-year notice requirement, but the announcement immediately shifted momentum in international climate diplomacy. This decision prompted swift international backlash, with leaders from the , , and reaffirming their commitments to the and emphasizing multilateral progress without U.S. participation. At the G20 Summit in , , on July 7–8, 2017, the leaders of the other 19 member countries issued a joint declaration stating their "strong commitment" to the 's full implementation and describing it as "irreversible," effectively isolating the on the issue. German Chancellor highlighted the rift, noting that the group would "move forward" on climate action despite the U.S. stance. These developments underscored a realignment in global climate leadership toward entities like the and , even as U.S. subnational actors—such as 12 states and over 200 cities forming the "We Are Still In" coalition in June 2017—vowed to uphold goals independently. Leading into COP23, the U.S. position fueled pre-conference preparations focused on rulebook development for the , with Fiji's Pre-COP meeting on October 23–25, 2017, prioritizing guidelines for nationally determined contributions amid heightened urgency from small island states vulnerable to sea-level rise. The active , including major storms Harvey, Irma, and Maria from August to September, further amplified calls for ambition, though U.S. federal policy under Trump prioritized expansion via executive orders rescinding prior regulations.

Conference Setup and Logistics

Hosting Arrangements and Fiji Presidency

The 2017 United Nations Climate Change Conference (COP23) was presided over by the government of , with serving as the conference president. This marked the first occasion a small island developing state () assumed the COP presidency, selected to highlight the acute climate vulnerabilities faced by such nations, including rising sea levels and extreme weather events like that struck in 2016. Although held the presidency, the event was physically hosted in , , from November 6 to 17, 2017, due to the archipelago's insufficient infrastructure for accommodating over 20,000 participants and extensive logistical requirements. provided comprehensive support, including the venue at the World Conference Center Bonn (WCCB) for the core negotiations in the designated Bula Zone—a nod to the Fijian greeting "Bula"—alongside the UN Campus. This hybrid arrangement underscored a collaborative model where the presiding nation directed political leadership and agenda priorities, such as advancing the Talanoa Dialogue for enhanced ambition under the , while the host nation managed operational aspects like security, accommodations, and side event facilities. Bainimarama's role involved chairing high-level segments and fostering inclusive dialogue, drawing on Fiji's experiences to elevate perspectives in global climate governance.

Participant Composition

The 2017 United Nations Climate Change Conference (COP23) assembled delegates from 197 Parties to the United Nations Framework Convention on (UNFCCC), encompassing virtually all recognized states and territories bound by the treaty. Total registered participants reached 22,060, a figure that included officials, observers from international and non-governmental entities, media representatives, and UNFCCC secretariat staff. This attendance marked a substantial gathering, though smaller than the record 35,000 at COP21 in , reflecting logistical constraints in and shifting national priorities following the U.S. intent to withdraw from the . Government delegations from Parties accounted for approximately 11,300 participants, with representation spanning developed and developing nations. African countries dominated the largest delegations, including Côte d’Ivoire (492 delegates), (355), Democratic Republic of Congo (340), and Congo (308), underscoring the continent's acute exposure to climate impacts and active engagement in adaptation-focused talks. In contrast, host nation fielded 230 delegates, while the sent a reduced contingent of 48 amid domestic policy reversals, and the dispatched 45. Several smaller delegations achieved full gender balance, such as all-female teams from (5 delegates), (4), and (4), though overall party delegations averaged 62% male and 38% female. Observer categories contributed significantly to the conference's diversity, with roughly 6,176 individuals from bodies, intergovernmental organizations (IGOs), and non-governmental organizations (NGOs). These groups, admitted under UNFCCC , participated in parallel sessions, advocacy, and technical inputs without decision-making authority. Media observers numbered 1,633, enabling extensive reporting on negotiations and side events. The composition emphasized multilateral input, though critiques from independent analyses noted potential overrepresentation of certain NGO constituencies aligned with specific policy agendas.

Negotiation Dynamics

Core Agenda and Tracks

The core agenda of the 2017 United Nations Climate Change Conference (COP23), held from November 6 to 17 in , , emphasized advancing the modalities for implementing the , which had entered into force in November 2016. Negotiations were structured across tracks led by the (COP 23), the Conference of the Parties serving as the Meeting of the Parties to the (CMP 13), the Conference of the Parties serving as the Meeting of the Parties to the (CMA 1-2), and subsidiary bodies including the Ad Hoc Working Group on the (APA 1-4), the Subsidiary Body for Scientific and Technological Advice (SBSTA 47), and the Subsidiary Body for Implementation (SBI 47). These tracks aimed to prepare draft decisions for adoption at subsequent sessions, with a deadline for completing the Paris Agreement "rulebook" by COP24 in 2018. The APA track constituted the central focus, addressing the work programme under items such as features of nationally determined contributions (NDCs), adaptation communications, the enhanced transparency framework for action and support, modalities for the , and the to facilitate and promote compliance. APA sessions transitioned from conceptual to technical negotiations, producing textual proposals but noting uneven progress and the need for an additional intersessional meeting in 2018 to accelerate convergence. Specific discussions included guidance on NDC and time frames, ex-ante transparency under Article 9.5, and the role of the Adaptation Fund in serving the , subject to CMA approval. Parallel tracks under SBSTA and SBI supported technical and implementation aspects. SBSTA 47 examined the technology framework under Article 10, cooperative approaches under Article 6 (including emissions trading mechanisms), agriculture-related work, and modalities for accounting international finance flows. SBI 47 focused on reporting guidelines for Annex I and non-Annex I parties, capacity-building initiatives, the gender action plan, and reviews of the Least Developed Countries Fund and Special Climate Change Fund. Cross-cutting agenda items across tracks included pre-2020 ambition enhancement, the launch of the Talanoa Dialogue for facilitating ambition under the Paris Agreement, and decisions on the Warsaw International Mechanism for loss and damage, though without establishing it as a permanent agenda item. CMP 13 addressed remaining Kyoto Protocol matters, such as the second commitment period's compliance and the sustainability of the Adaptation Fund, while CMA 1-2 initiated high-level oversight of Paris Agreement implementation. Overall, the agenda prioritized bridging pre-2020 actions with post-2020 frameworks, with 31 COP decisions and 7 CMP decisions adopted to forward workstreams.

Key Discussions and Deadlocks

Negotiations at COP23 centered on advancing the Paris Agreement's implementation guidelines, known as the rulebook, with particular emphasis on cooperative mechanisms under Article 6, finance provisions in Article 9, transparency frameworks in Article 13, strategies, and loss and damage considerations. Parties produced draft texts for many elements, but progress was uneven, with sessions extending beyond the scheduled 6–17 November 2017 close due to unresolved differences, culminating in late-night agreements on 17–18 November. A major sticking point was , where developing countries, including the G-77/ group, pressed for enhanced ex-ante reporting under Article 9.5 to ensure predictable flows toward the $100 billion annual target by 2020, arguing it aligned with Paris mandates for transparency on providers' efforts. Developed nations, such as those in the and Umbrella Group, resisted expanding these modalities beyond existing Standing Committee on Finance guidance, citing concerns over feasibility and potential to undermine voluntary contributions, leading to a deadlock resolved only by deferring further elaboration to intersessional meetings before COP24. Disagreements also arose on the timeline for a new collective quantified goal post-2025, with developing parties advocating an early start at CMA 1-2 in 2018, while developed countries preferred delay until 2023 to assess the 2020 goal's lessons. On carbon markets under Article 6, discussions stalled over governance and integrity of internationally transferred mitigation outcomes (ITMOs) and sustainable development mechanisms, with proposals for a UN "gateway" to oversee trading—supported by countries like the Democratic Republic of Congo—facing opposition due to fears of excessive corporate influence and risks of double-counting emissions reductions. No consensus emerged, prompting continuation of work at the Subsidiary Body for Scientific and Technological Advice session in 2018, reflecting persistent divides between parties favoring centralized standards (e.g., ) and those preferring flexibility (e.g., Brazil-led coalitions). Loss and damage talks under the Warsaw International Mechanism highlighted tensions, as vulnerable nations like small island states sought dedicated finance streams for irreversible impacts, but developed countries blocked new funding sources, deferring substantive review to 2019 and scheduling only an expert dialogue for May 2018. discussions advanced modestly, with Fiji's presidency securing agreement for the to serve the pending CMA approval in 2018 and pledges totaling $90 million (including $50 million from ), yet governance reforms remained contentious amid calls for greater developing-country input. Transparency framework negotiations under Article 13 progressed to a 46-page draft text but encountered deadlocks on differentiation between developed and developing countries' reporting obligations, with the latter insisting on flexibility for capacity constraints, while the former pushed for robust, comparable metrics to enable the . One notable resolution broke a years-long on , merging separate technical expert meetings into a single workshop platform requested by parties, allowing streamlined submissions by March 2018. Overall, these deadlocks underscored ongoing North-South divides on responsibility and ambition, with the conference launching the Talanoa Dialogue for 2018 to informally address pre-2020 implementation gaps without binding outcomes.

Formal Outcomes

Advances on Paris Agreement Implementation

The Conference of the Parties serving as the meeting of the Parties to the Paris Agreement (CMA) at its first session (CMA 1) under COP23 advanced preparatory work on the Paris Agreement's implementation modalities, collectively termed the Paris Rulebook, which outlines guidelines for nationally determined contributions (NDCs), transparency, accounting, and compliance. These efforts built on the Paris Agreement's entry into force in November 2016, with negotiations emphasizing technical details rather than final adoption, as comprehensive rules were deferred to COP24 in Katowice. Progress included initial agreements on procedural elements to facilitate ratcheting up ambition through periodic reviews of collective efforts. A key decision was the establishment of the Talanoa Dialogue, launched via decision 1/CMA.1, as the facilitative process to assess progress toward the Paris Agreement's goals of limiting global temperature increase to well below 2°C and pursuing 1.5°C efforts. Drawing from Fijian and Pacific traditions of open, story-based discussion, the dialogue aimed to collect inputs from parties, non-parties, and observers starting in 2018 to inform the 2018 facilitative dialogue and the first in 2023, with a focus on identifying gaps in , , and . This mechanism activated the Agreement's ambition cycle by promoting transparency in collective shortcomings without prescribing new commitments. Negotiations on the enhanced transparency framework (Article 13) progressed through subsidiary body sessions, agreeing on outlines for biennial transparency reports covering mitigation, adaptation, and support provided or received, with built-in flexibility for and small island states to account for capacity constraints. Parties endorsed a work plan for the consultative group of experts to refine modalities, including common reporting tables and technical reviews, though divergences persisted on stringency for developing nations versus comparability for all. This framework seeks to replace differentiated reporting under the Convention with a unified yet flexible system to build trust via verifiable data. Initial steps were taken on cooperative approaches under Article 6, including discussions on internationally transferred mitigation outcomes (ITMOs) to enable emission trading while preventing double-counting, but no binding rules emerged due to concerns over environmental integrity and market oversight. The Committee on Capacity-building held its inaugural meeting, adopting a five-year workplan to assist developing countries in NDC implementation through technical assistance and knowledge sharing, funded partly by voluntary contributions. These outcomes underscored incremental rather than transformative advances, with empirical assessments of subsequent NDC updates showing insufficient ambition to meet Paris temperature targets absent accelerated action.

Subsidiary Decisions on Finance and Adaptation

The at COP23 adopted decision 6/CP.23 on long-term , welcoming the efforts of Parties to mobilize joint public and private finance towards the USD 100 billion annual goal by 2020 while noting that aggregate flows reached approximately USD 67 billion in 2014-2015, predominantly public sources. This decision requested Parties, the operating entities of the Financial Mechanism, and the Standing Committee on Finance (SCF) to provide updated information on strategies and approaches for scaling up beyond 2020, emphasizing the need for enhanced transparency and predictability in delivery. Decision 7/CP.23 addressed the SCF's report on its activities, taking note of its work on biennial assessments of flows, capacity-building initiatives, and the of the USD 100 billion , including gaps in private and the need for better tracking methodologies. Complementing this, decision 8/CP.23 reviewed the SCF's functions, endorsing enhancements to its to strengthen reporting on provision, , and the balance between and funding, with a focus on empirical data from public and private sources. On adaptation, decision 13/CP.23 assessed the technical examination processes (TEPs) for , concluding the initial phase and requesting the secretariat to summarize findings on scaling up adaptation actions, including barriers such as insufficient and , while recommending continuation under updated modalities aligned with the 's enhanced transparency framework. The COP also adopted elements related to the Adaptation Fund's operationalization under the via linked CMP decisions, enabling access for developing countries and noting pledges that bolstered its resources for vulnerability reduction projects. Additionally, through subsidiary body inputs, the Adaptation Committee was tasked with advancing work on reviewing progress towards the global goal on , including indicators for resilience and the integration of national adaptation plans (NAPs) in vulnerable nations. These measures aimed to address empirical shortfalls in adaptation , estimated at USD 140-300 billion annually by 2030 for developing countries, though delivery remained below needs.

Parallel Activities

Climate Action Zone and Side Events

The Climate Action Zone, referred to as the Bonn Zone, was established in Bonn's Rheinaue Park as a dedicated for non-state actors, including businesses, cities, investors, and organizations, to exhibit voluntary climate initiatives and host parallel programming separate from formal negotiations in the adjacent Bula Zone at the World Conference Center Bonn. This arrangement, coordinated by the UNFCCC secretariat and the German hosts, emphasized stakeholder-driven actions under the Global Climate Action agenda, running concurrently with the main conference from November 6 to 17, 2017, and featuring pavilions, interactive displays, and high-level roundtables to highlight subnational and commitments. Side events in the Bonn Zone numbered in the hundreds, organized by admitted observer entities such as NGOs, international organizations, and national pavilions, covering themes like access, short-lived pollutants mitigation, ocean-climate linkages, and health impacts of emissions. Notable examples included the Pavilion's sessions on November 10 in Room , focusing on scientific roles in ocean adaptation; the Commonwealth's event on from 16:45 to 18:15 in the Room addressing finance mechanisms for developing countries; and the Global Environment Facility's collaboration with the on enhancing financial mechanism synergies. The Sustainable Innovation Forum, billed as the conference's largest side event and partnered with the , convened over 600 participants on November 13-14 for discussions on scalable low-carbon technologies and investments. These activities culminated in a high-level closing on , synthesizing outcomes from five days of Global Climate Action events, though empirical assessments of their causal impact on emissions trajectories remained limited, with emphasis placed on agenda-setting rather than binding metrics. The zone's design facilitated broader engagement beyond government delegates, with access extended to accredited observers during operating hours from approximately 8:00 to 23:00 daily, excluding November 12.

Engagement with Non-Governmental Actors

Non-governmental organizations (NGOs), business entities, ' representatives, youth groups, and other actors participated in COP23 as accredited observers under UNFCCC rules, which recognize nine constituencies including environmental NGOs, business and industry NGOs, local governments, and ' organizations. These observers attended negotiation sessions, delivered interventions, and contributed to informal dialogues, such as those emphasizing the Fijian "Talanoa" approach of open, inclusive discussion on enhancing nationally determined contributions (NDCs). A landmark development was the first official meeting at a COP between national governments and non-governmental actors, aimed at fostering collaboration on implementation and addressing gaps in ambition. Non-state actors, including cities, regions, investors, and NGOs, announced initiatives in the dedicated Zone, separate from the formal negotiation venue, highlighting complementary actions like the Ocean Pathway Initiative and commitments from subnational entities. groups, such as the comprising over 850 environmental NGOs, organized sessions evaluating negotiation progress and advocating for stronger outcomes in areas like and loss and damage. Indigenous peoples' organizations emphasized recognition of their rights and in climate policies, with visible participation enabled by travel support for 22 community representatives who networked globally and intervened on issues. delegates pushed for greater ambition and their inclusion in , uniting with the Fijian presidency in events focused on resilience for vulnerable populations. Organizations like CARE prioritized advocacy on gender-responsive , , and in relation to the 1.5°C target. Non-state actors collectively urged deeper integration into the UNFCCC process, demonstrating commitments to independent while critiquing the pace of state-led progress; for instance, they highlighted subnational efforts to fill gaps left by national policies. This engagement underscored a shift toward multi-actor partnerships, though formal influence remained limited to advisory roles without voting rights.

Criticisms and Alternative Perspectives

Shortcomings in Ambition and Equity

Negotiations at COP23 highlighted persistent shortfalls in elevating the ambition of pre-2020 climate actions, as developing countries pressed for accelerated implementation of developed nations' commitments under the Protocol's second period, but faced resistance leading to procedural deadlocks. A proposed agenda item for immediate action stalled, with critics warning it risked replicating the acrimony and failure of the 2009 summit, resulting only in a facilitative mechanism rather than enforceable enhancements. This outcome deferred substantive progress, as stocktakes of compliance were scheduled for 2018 and 2019 without immediate penalties or ratcheted targets, underscoring the absence of binding mechanisms to bridge the emissions gap projected to exceed limits. The launch of the Talanoa Dialogue aimed to foster discussions on raising overall ambition toward the Paris Agreement's 1.5–2°C goals, but it functioned primarily as a non-binding, narrative-driven process without mandating revisions to Nationally Determined Contributions (NDCs). Activists and observers criticized this as insufficient to address the urgency of interrelated crises, with developed countries failing to demonstrate deeper emissions cuts needed pre-2020, thereby perpetuating a trajectory toward higher warming scenarios. The dialogue's emphasis on storytelling over quantifiable targets reflected a broader shortfall in translating Pacific-hosted vulnerability concerns—exemplified by Fiji's presidency—into concrete global commitments from major emitters. On equity, developing countries, including (LDCs), reiterated demands for fulfillment of the 2009 pledge by developed nations to mobilize $100 billion annually in by 2020, yet COP23 yielded no firm roadmap or assurances of attainment amid ongoing shortfalls in public and private flows. Progress remained limited to bilateral pledges, such as Germany's €130 million to the , without resolving transparency gaps or establishing a post-2020 finance goal scaled to needs, leaving and loss-and-damage funding—critical for vulnerable states—under-resourced and secondary to . Tensions over surfaced in rulebook talks, with developing blocs arguing that developed countries' historical emissions warranted greater burden-sharing, but resistance to new financial liabilities stalled equitable advancements. These deficiencies amplified inequities for and LDCs, where adaptation efforts received rhetorical support but lacked dedicated mechanisms beyond the Warsaw International Mechanism, which offered no affordable insurance or grants for irreversible damages. While some viewed the outcomes as procedural groundwork, the conference's inability to enforce pre-2020 accountability or finance equity perpetuated criticisms that the UNFCCC process prioritized consensus over causal imperatives for emission reductions and support redistribution.

Skeptical and Economic Critiques

Critics of the policies advanced at COP23, which focused on developing the implementation rulebook for the , emphasized the disproportionate economic costs relative to projected climate benefits. Economist analyzed pre-Paris pledges and subsequent nationally determined contributions (NDCs), estimating that full implementation would cost $819–$1,890 billion annually by 2030 while achieving only about a 1% reduction in the emissions needed to meet long-term targets, resulting in a negligible global temperature impact of approximately 0.17°C by 2100. This perspective held that COP23's emphasis on procedural advancements, such as transparency frameworks and compliance mechanisms, diverted resources from more cost-effective alternatives like into or targeted , without substantively altering the inefficient structure of voluntary commitments. Skeptical commentators argued that COP23 perpetuated alarmist narratives by prioritizing mitigation mandates amid unresolved uncertainties in and attribution of to anthropogenic forcing. Organizations like the highlighted how the conference's rhetoric, including calls for urgent pre-2020 action under Fijian presidency, amplified unsubstantiated claims of imminent catastrophe while sidelining empirical evidence of historical climate variability and the benefits of fossil fuel-driven development for vulnerable island nations. The U.S. delegation under the Trump administration, attending amid the withdrawal process, underscored these concerns by promoting and nuclear technologies as viable low-emission options, critiquing the summit's bias toward renewable subsidies that economists viewed as economically distortive without commensurate global emission reductions. These critiques extended to the conference's facilitation of finance tracks, where pledges for $100 billion annually in climate were seen as ineffective wealth transfers likely to foster dependency rather than verifiable emission cuts, with developing nations' emissions rising post-2017 despite such mechanisms. Overall, skeptics contended that COP23 exemplified a of high-stakes yielding symbolic outcomes, as global CO2 emissions increased by 1.1% in 2017, underscoring the limits of top-down approaches over market-driven .

Long-Term Evaluation

Follow-Up Mechanisms

The Paris Agreement work programme (PAWP), advanced at COP23, established ongoing technical discussions through subsidiary bodies to develop detailed rules for implementing the agreement, with completion targeted for COP24 in 2018. This mechanism included modalities for features such as nationally determined contributions (NDCs), transparency, and global stocktake, with intersessional workshops and expert inputs scheduled for 2018 to address gaps in areas like mitigation, adaptation, finance, and technology transfer. Parties adopted 31 decisions under the COP and CMP, providing guidance on modalities for NDC communication and cooperative approaches under Article 6, ensuring continuity in negotiations despite incomplete finalization at Bonn. A central follow-up mechanism initiated at COP23 was the Talanoa Dialogue, a year-long process launched by the Fijian presidency to assess collective progress toward goals and enhance ambition ahead of 2020 NDC updates. Structured around three questions—where we are, where we want to go, and how to get there—the dialogue emphasized inclusive storytelling involving states, non-state actors, and observers through submissions, events, and ministerial segments throughout 2018. It concluded at COP24 with a "Talanoa ," urging rapid mobilization but without binding outcomes, serving as a precursor to the 's enhanced transparency framework and the first at COP26. Additional mechanisms included operationalizing the Local Communities and Indigenous Peoples Platform to integrate their knowledge into and efforts via annual dialogues and reports to the COP, and initiating the Koronivia Joint Work on for addressing in climate responses through workshops starting in 2018. A decision on pre-2020 established a contact group for accelerating ambition under the Convention, linking to the Talanoa for urgency on existing commitments. These structures relied on subsidiary body sessions and high-level engagements, with reporting obligations to subsequent COPs for iterative refinement.

Empirical Outcomes on Emissions and Climate Metrics

Global (GHG) emissions rose steadily after the 2017 United Nations Climate Change Conference, with total emissions reaching 53.0 Gt CO₂eq in 2023, a 1.9% increase from 2022, and projected to hit 53.2 Gt CO₂eq in 2024, up another 1.3%. Energy-related CO₂ emissions, a major component, climbed to a record 37.8 Gt in 2024, reflecting a 0.8% year-over-year rise driven by growth in (up 0.9%) and other amid expanding energy demand in developing economies. Fossil fuel CO₂ emissions alone exceeded 37 GtCO₂e in 2023, marking a more than 60% increase since 1990 despite international commitments under the advanced at COP23. Atmospheric CO₂ concentrations, a key climate metric, continued their upward trajectory post-COP23, averaging 422.7 parts per million (ppm) in 2024—the highest on record—and rising 3.75 ppm from 2023 levels, consistent with sustained emissions inputs exceeding natural sinks. Total anthropogenic CO₂ emissions were estimated at 41.6 billion tonnes in 2024, up from 40.6 billion tonnes in 2023, underscoring the failure to achieve the peaking or reduction pathways outlined in Nationally Determined Contributions (NDCs) facilitated by COP23 mechanisms like the Talanoa Dialogue. These trends align with assessments that existing NDCs, even if fully implemented, would leave a substantial emissions gap relative to Paris Agreement temperature goals, with global emissions having increased rather than declined as needed for limiting warming to 1.5–2°C.
YearGlobal GHG Emissions (Gt CO₂eq)Energy-Related CO₂ Emissions (Gt)Atmospheric CO₂ (ppm, annual avg.)
2017~51.0~36.0~407
2022~52.0~36.8~418
202353.0~37.4~419
202453.2 (est.)37.8422.7
Data compiled from EDGAR for total GHGs, IEA for energy CO₂, and NOAA for atmospheric levels; pre-2022 figures approximated from trend continuity in primary sources. indicates no discernible reversal in emissions trajectories attributable to COP23-specific outcomes, as national pledges remained insufficient to curb aggregate growth, particularly from major emitters like and where economic expansion offset efficiency gains.

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