As the world braces for one more climate summit in November this yr, the Subsidiary Bodies assembly in Bonn, Germany, introduced collectively negotiators, scientists, policymakers, and civil society actors to deal with the complicated, behind-the-scenes work that shapes the end result of the Conference of the Parties (COP) summit.
Held yearly in Bonn, this mid-year gathering units the technical and political groundwork for the following COPs, with the thirtieth Session of the COP (COP30) scheduled for later this yr in Belém, Brazil. Beyond setting the agenda, Bonn may very well be thought of a litmus test to gauge how significantly international locations are dedicated to implementing previous pledges and the way ready they’re to scale up ambition within the face of a quickly closing climate window.
Sadly, this yr’s Bonn convention was marked by delays, deep disagreements, and mounting frustration, particularly over procedural priorities and climate finance. As international temperatures proceed to interrupt information, the urgency to behave was palpable — as was the resistance to revisiting entrenched political variations.
Delayed begin, deep divisions
The convention acquired off to a sluggish begin as agenda adoption, a procedural step, was stalled by disputes over finance and commerce measures. The Like-Minded Developing Countries (LMDCs, together with India) demanded the inclusion of Article 9.1 of the Paris Agreement, which obligates developed international locations to supply climate finance and unilateral commerce measures, corresponding to carbon border taxes, on the agenda. India, together with the LMDCs, continues to see carbon border taxes as unfair, undermining rules of fairness and customary however differentiated obligations.
Both these propositions had been opposed by developed nations, significantly the European Union, which argued that finance points had been being addressed underneath different agenda objects. Eventually, a compromise was reached to deal with these points: not as standalone agenda objects however by casual consultations. Disappointed with developed international locations’ reluctance to debate the authorized obligations to supply monetary assist to growing international locations, the LMDCs said their intention to revisit this contentious situation at COP30.
This extended impasse delayed the beginning of formal negotiations by almost two days and underscored the persistent divide. While growing nations pushed for historic obligations to be acknowledged and operationalised, developed international locations advocated forward-looking frameworks and voluntary assist mechanisms.
An elusive settlement
One of probably the most intensely negotiated themes at Bonn was the Global Goal on Adaptation, which goals to scale back vulnerability to climate change, improve adaptive capability, and strengthen resilience. There had been additionally discussions on integrating the National Adaptation Plan progress into the Goal, which the G77+China rooted for.
One of the important thing drawbacks of the Goal up to now has been the dearth of metrics. At Bonn, about 490 indicators from an inventory of almost 9,000 had been shortlisted, with the intention of consolidating them additional to about 100. These indicators shall be used to trace adaptation actions underneath well being, water, agriculture, and infrastructure, amongst others. India emphasised that adaptation should not be assessed by a uniform lens and backed indicators which are versatile, context-sensitive, and don’t overburden nationwide reporting.
However, variations and tensions arose over whether or not and easy methods to embrace indicators on the means of implementation, together with finance, capability, and expertise switch. Many growing international locations and regional blocs, such because the African Group and Independent Alliance of Latin America and the Caribbean (AILAC), harassed that with out finance-related indicators, adaptation efforts will stay an unfunded mandate.
However, international locations like Japan and Australia pushed again towards together with finance-related indicators. Additionally, the African Group and AILAC had been against together with indicators to trace home finance allocation and growth help, whereas Australia supported their inclusion, emphasising the significance of monitoring nationwide adaptation processes.
The course of to refine indicators was thus contentious. Countries together with Australia warned towards micromanaging skilled teams tasked with technical work whereas others demanded clear steering and tight timelines. Towards the tip of the convention, Parties agreed on a globally relevant headline indicator set, which might be complemented by regionally or nationally tailor-made context-specific sub-indicators. Guidance on indicators to replicate the means of implementation wasn’t agreed on, nevertheless.
‘Safe space’ debate
The Mitigation Work Programme (MWP) — created to scale up motion to fulfill the 1.5° C goal — additionally got here underneath scrutiny. While many Parties acknowledged the usefulness of dialogues underneath the MWP, a number of questioned its capability to ship precise emissions reductions.
The debate between Parties was on how a constructive and inclusive surroundings, a.ok.a. protected house, may very well be offered for the MWP discussions: some advocated a push to ramp up ambitions whereas others wished to restrict their scope. Developing international locations emphasised that many of them have already set formidable Nationally Determined Contribution (NDC) targets however lack the monetary and technical assist to implement them.
The LMDCs, together with India, and the African and Arab Groups, warned towards the MWP getting used to impose new commitments and urged that it stay a facilitative, non-punitive course of. The Philippines referred to as for the MWP to facilitate, promote, and improve worldwide cooperation.
Further, a proposal was made to develop a digital platform to share mitigation instruments and experiences. While Brazil, supported by Egypt, argued that this might assist join fragmented initiatives, the Alliance of Small Island States and the EU cautioned in regards to the duplication of present platforms, which may take consideration away from scaling up ambitions.
L&D, simply transition, gender
Members of the G-77/China huddle to discover a means ahead on the Global Goal on Adaptation, June 26, 2025.
| Photo Credit:
IISD/ENB – Kiara Worth
The evaluation of the Warsaw International Mechanism on Loss and Damage (L&D) made some headway, with proposals rising on integrating L&D into NDCs and streamlining technical help. However, funding gaps and questions on how the Santiago Network — a UN initiative linking susceptible growing nations with technical assist to deal with climate impacts, specializing in loss and injury discount — would function continued to cloud consensus.
In this session, interventions by observers emphasised the necessity to take into account non-economic L&D, scale up finance, and align L&D efforts with human rights obligations. India and different growing international locations referred to as for streamlining entry to technical assist and enough and scaled-up funding for responding to climate-induced losses.
In discussions underneath the Just Transition Work Programme, Parties emphasised that simply transition should be anchored in fairness, growth rights, and nationwide contexts. Social dialogue, labour rights, and significant stakeholder engagement, particularly that of Indigenous Peoples, had been highlighted as foundational to simply transition. Parties additionally flagged the financial impacts of unilateral measures, corresponding to carbon border taxes (tariffs imposed on imported items based mostly on their carbon footprint) and commerce limitations, and the function of crucial minerals in power transition. Parties agreed to deal with these points by linked agenda objects, and this is able to stay a bone of competition at COP30.
A brand new dispute emerged at Bonn in reference to the event of a brand new Gender Action Plan. There had been variations of opinion on terminology (gender range and intersectionality). Key areas of focus proposed for the Plan included unpaid care work, sexual and reproductive well being, and addressing gender-based violence, signalling the necessity for a framework that responds to evolving realities. In this context, the roles of gender-disaggregated information, conventional information techniques, and gender-responsive budgeting had been additionally mentioned.
Climate finance gridlock
Climate finance loomed giant throughout nearly each negotiation monitor. The points of how a lot funding is out there, the place it’s going, the place it’s going to go, and the way predictable it’s remained a recurring theme throughout discussions on adaptation, mitigation, and L&D.
The presidency-led session on the ‘Baku to Belem’ roadmap goals to operationalise a goal to mobilise $1.3 trillion yearly in climate finance. But deep disagreements emerged over the construction of finance — grants v. loans, public v. personal, and mitigation v. adaptation — and who needs to be held chargeable for elevating the cash.
Developing international locations pushed for clear and clear burden-sharing frameworks amongst developed international locations, with the G77 and China calling for tackling systemic limitations to finance. Small Island Developing States, represented by AOSIS, demanded earmarked and fast-disbursing funds tailor-made to their distinctive vulnerabilities. The Least Developed Countries sought a tripling of adaptation finance by 2030 in comparison with 2022 ranges and a higher reliance on grants. Several teams, together with AILAC, the Environmental Integrity Group, and the Arab Group, additionally harassed the significance of monitoring progress; scaling non-debt devices; and innovating income streams, corresponding to taxes on monetary transactions. The EU famous the necessity for the roadmap to be a clear platform partaking exterior stakeholders and constructing on present initiatives.
Taken collectively, these inputs replicate a transparent name for an inclusive and accountable roadmap that’s aware of various regional wants.
Meanwhile, issues emerged over the credibility of ex-ante finance reporting by developed international locations on their deliberate monetary contributions, per Article 9.5 of the Paris Agreement. Several growing international locations highlighted discrepancies between deliberate or promised contributions and precise disbursements and referred to as for reforms to enhance transparency and accountability.
On the service preparations of the Adaptation Fund: Parties led by AOSIS requested that the World Bank, at the moment an Interim Trustee of the Fund, be named the Permanent Trustee of the Adaptation Fund.
With COP30 in Belém simply months away, the Bonn Climate Conference was each a teaser and a pressure test. On the optimistic aspect, events made incremental progress on technical workstreams like adaptation indicators, transparency frameworks, and Article 6 (on cooperative mechanisms). But the underlying political tensions round fairness and finance stay unresolved. Bonn 2025 reaffirmed that whereas the science is unequivocal, politics will decide the tempo of motion.
Indu Okay. Murthy leads the Climate, Environment and Sustainability sector on the Centre for Study of Science, Technology and Policy (CSTEP), a research-based suppose tank.
