22 of the planet’s 34 vital signs are at record levels, with many of them continuing to trend sharply in the wrong direction. This is the message of the sixth issue of the annual “State of the climate” report. The report was prepared by an international coalition with contribution from the Potsdam Institute for Climate Impact Research (PIK) and led by Oregon State University scientists. Published today in BioScience, it cites global data from the Intergovernmental Panel on Climate Change (IPCC) in proposing “high-impact” strategies.

“The last few years have seen vital signs breaking their records by extraordinary margins, like surface temperature, ocean heat content, sea ice loss and fire-related tree cover loss,” says PIK Director Johan Rockström, a co-author of the report. “The accelerating climate crisis presents a range of deeply interconnected risks to the planet’s essential operating systems – from critical tipping elements such as the ocean current system AMOC, to the integrity of Earth’s living biosphere, to the stability of global water resources. But our report also shows how this unprecedented threat to the Earth system – and society – can be mitigated.”

The authors note that 2024 was the hottest year on record and likely the hottest in at least the last 125,000 years. “Climate mitigation strategies are available, cost-effective and urgently needed, and we can still limit warming if we act boldly and quickly,” said William Ripple, professor at Oregon State University and co-lead author. “But the window is closing. Without effective strategies, we will rapidly encounter escalating risks that threaten to overwhelm systems of peace, governance, and public and ecosystem health.”

The research team reviews high-impact groups of actions involving strategies around different sectors, including energy, nature and the global food system:

Energy: Renewable energy sources such as solar and wind have the potential to supply up to 70 percent of global electricity by 2050, the report notes. A rapid phaseout of fossil fuels would yield one of the largest contributions to climate mitigation. 

Ecosystems: Protecting and restoring ecosystems such as forests, wetlands, mangroves and peatlands could remove or avoid around 10 gigatonnes of carbon dioxide emissions per year by 2050, which is equivalent to roughly 25 percent of current annual emissions, while also supporting biodiversity and water security.

Food systems: Reducing food loss and waste, which currently accounts for roughly 8 to 10 percent of global greenhouse gas emissions, and shifting toward more plant-rich diets can substantially lower emissions. These strategies also promote human health and food security, according to the report.

The report warns that every fraction of a degree of avoided warming matters for human and ecological well-being. Small reductions in temperature rise can significantly reduce the risk from extreme weather, biodiversity loss, food and water insecurity as well as risks posed from crossing major tipping points. The authors emphasise that delaying action will lock in higher costs and more severe impacts, while swift, coordinated measures can yield immediate benefits for communities and ecosystems worldwide.

Journal

BioScience

DOI

10.1093/biosci/biaf149

Current climatological data reveal a troubling trend: extreme temperature records are being shattered with alarming frequency. During the Met Office’s recent tenure, the United Kingdom experienced three of its four hottest years on record, a clear signal of the accelerating pace of global warming. More strikingly, the occurrence of temperatures surpassing 40°C in the UK—once considered implausible—was recorded for the first time in 2022, underscoring the escalating intensity of heatwaves attributable to anthropogenic climate forcing and feedback loops within the Earth’s climate system.

The forum’s focus centers on crucial phenomena such as abrupt climate change, tipping points, and the adaptive capacity of socio-ecological systems. It integrates multidisciplinary research perspectives—from atmospheric physics and oceanography to socio-economic modeling—to deepen the understanding of nonlinear responses within Earth’s climate subsystems. In particular, the Global Tipping Points Conference held under the forum’s aegis emphasizes thresholds beyond which climatic components may irreversibly shift states, catalyzing far-reaching impacts on global ecosystems and human settlements.

Moreover, the Exeter Climate Forum acknowledges that while scientific consensus on climate risks has solidified, the global political momentum to implement necessary mitigation and adaptation strategies is increasingly fragile. This tension between empirical urgency and policy inertia fuels the imperative to enhance knowledge exchange mechanisms. Hence, the forum deliberately facilitates dialogue among academia, industry stakeholders, and policymakers to translate complex climate models and projections into robust, implementable strategies for both decarbonization and climate resilience.

The participation of globally recognized entities such as the University of Exeter and the UK Met Office consolidates Exeter’s position as a nexus for cutting-edge climate science. This collaborative environment fosters a synthesis of expertise spanning meteorology, computational modeling, environmental economics, and risk analysis, thereby producing integrative frameworks that inform international negotiations like COP30. Insights generated during the forum are expected to refine predictive climate models, improve adaptive infrastructure design, and influence global climate policy formations.

An important scientific dimension discussed involves the quantification and attribution of climate extremes within the context of global change. The Met Office’s newly developed high-resolution climate models elucidate the spatial and temporal dynamics of heatwaves, droughts, and flooding events, offering granular assessments of vulnerabilities. These advances enable policymakers to prioritize interventions effectively, bolstering the resilience of critical systems such as agriculture, water resources, and urban environments against increasingly volatile climatic conditions.

The Exeter Climate Forum’s commitment to addressing both mitigation and adaptation underscores the need to balance immediate emission reductions with long-term resilience building. Discussions delve into carbon cycle feedbacks, greenhouse gas monitoring technologies, and their implications for achieving net-zero targets. Simultaneously, integrated adaptations—encompassing ecosystem-based approaches and socio-economic adjustments—are analyzed through case studies and scenario modeling to provide evidence-based recommendations that respect regional diversity and equity considerations.

A core challenge highlighted during the forum is the nonlinear relationship between climate drivers and societal impacts, which complicates decision-making under uncertainty. The event promotes methodological innovations in climate risk assessment, including probabilistic forecasting and dynamic vulnerability indices, to better characterize and communicate uncertainties inherent in climate projections. This enables more informed policy deliberations and enhances public understanding of climate risks, thereby facilitating supportive governance frameworks.

The forum also addresses the escalating importance of knowledge transfer between the scientific community and the business sector. As climate risk increasingly permeates financial systems and supply chains, enterprises are urged to integrate climate science into strategic planning and operational risk management. The cross-sector dialogues aim to bridge the gap between empirical research and practical applications, fostering climate-smart technologies and investment strategies that align with sustainable development goals.

Given the urgent and complex nature of climate change challenges, the Exeter Climate Forum’s role transcends traditional scientific conferences. It aspires to catalyze a global response grounded in robust evidence, technological innovation, and social engagement. By spotlighting emergent climate threats and equipping decision-makers with actionable knowledge, the forum plays an indispensable role in shaping an adaptable and sustainable future under rapidly changing planetary conditions.

The comprehensive agenda includes keynote speeches, panel discussions, and workshops that collectively interrogate the state of the climate system, scrutinize mitigation pathways, and explore adaptation policies. The diverse assembly of participants—ranging from early-career researchers to seasoned climate experts—reflects a commitment to inclusivity and interdisciplinary integration, essential for addressing the multifarious dimensions of climate change.

In summary, the Exeter Climate Forum exemplifies a holistic scientific endeavor aimed at confronting climate change’s escalating risks. By uniting scientific rigor with policy relevance, the event offers a beacon of hope for coordinated global action. As climate extremes become more frequent and severe, such platforms become increasingly vital to disseminate knowledge, foster innovation, and galvanize collective efforts toward a resilient and low-carbon future.

Subject of Research: Climate change risks, climate system dynamics, mitigation and adaptation strategies, abrupt climate change, tipping points.

Article Title: Exeter Climate Forum: Confronting the Escalating Risks of Climate Change Through Science and Policy

News Publication Date: Information not provided

Web References:

• https://exeterclimateforum.com/
• https://exeterclimateforum.com/exeter-climate-conference/
• https://global-tipping-points.org/conference-2025/

Keywords: Climate change, Climate systems, Abrupt climate change, Climate change adaptation, Climate change mitigation, Climatology