Joeri Rogelj
Biographic Data
| ID | 6569581 |
|---|---|
| NAME | Joeri Rogelj |
| GIVEN NAMES | Joeri |
| FAMILY NAME | Rogelj |
| SIGNATURE | ROGELJ J |
| AFFILIATIONS | International Institute for Applied Systems Analysis |
| ORCID | 0000-0003-2056-9061 |
| VERIFIED | Yes |
| TOTAL WORKS | 66 |
| TOTAL CITATIONS | 369 |
| AUTHOR COUNT | 66 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Implications of overshoot for climate mitigation strategies
A weighting framework to improve the use of emissions scenario ensembles of opportunity
Integrated assessment models produce large ensembles of socioeconomic scenarios that are used profusely in climate change research. The Intergovernmental Panel on Climate Change (IPCC), non-governmental organizations or national climate committees often rely on ensemble statistics to identify mitigation strategies and set climate targets. A limitation of such evidence is the opportunistic nature of scenario ensembles: they are an unstructured, se…
Future-proofing interpretations of the Paris Agreement’s limit of well below 2 °C
The Paris Agreement’s ‘well below 2 °C’ target is often interpreted as holding warming below 2 °C with a probability in the 66–90% range. We argue that such interpretations are not future-proof as decreasing uncertainties with time will allow temperatures to approach 2 °C later in the century. We show how referring to median warming can resolve this issue and illustrate how past probabilistic target interpretations would translate to a median 1.6…
The challenge with climate-energy-economy models in constructing fair and equitable climate futures
Climate change and policy are unevenly experienced across nations, social groups, households, sectors, and generations. Understanding how benefits and burdens of climate action can be equitably shared is therefore critical. While the cornerstone concept of ‘common but differentiated responsibilities and respective capabilities’ is broadly accepted, the absence of consensus on equitable effort-sharing principles presents a challenge that permeates…
Tracing inclusivity at UNFCCC conferences through side events and interest group dynamics
Inclusivity and transparency are the foundations of procedural justice in climate governance. However, concerns persist around the influence of business interest groups at United Nations Framework Convention on Climate Change (UNFCCC) Conferences of Parties (COPs). COPs have increased in size and complexity, obscuring agendas and organizational relationships. Here we analyse the discourse and networks of actors at COP side events from 2003 to 202…
An exploration and evaluation framework for climate change mitigation scenarios with varying feasibility and desirability
Ensembles of climate change mitigation scenarios present users with a collection of strategies for limiting global warming. These strategies may differ in their associated feasibility challenges, mitigation co-impacts, and ultimately their relative societal desirability. Understanding these scenario characteristics is therefore crucial when scenarios are used to inform strategic decisions. One approach to enhance this understanding is to establis…
Sharing emissions and removals for meeting the Paris Agreement through a distributive and corrective justice lens
Carbon dioxide removal (CDR) is critical for achieving net-zero and net-negative CO 2 emissions that can halt and potentially reverse global warming, respectively. However, reliable CDR is still costly and comes with considerable technological and ecological uncertainties. Despite the centrality of equity in the Paris Agreement, no integrated framework exists to equitably allocate responsibilities for CDR and residual emissions among countries. H…
A framework to assess highest possible ambition in nationally determined contributions under Article 4 of the Paris Agreement
Collective progress towards meeting the Paris Agreement’s long-term temperature goal (LTTG) remains insufficient, a shortfall to be addressed by new Nationally Determined Contributions (NDCs). The Agreement stipulates that countries’ NDCs will represent a progression and reflect their highest possible ambition (HPA). However, the vague conceptualisation of this HPA norm challenges its translation into practice, allowing states to reference ambiti…
Closing decent living gaps in energy and emissions scenarios
Social and environmental agendas are intricately connected and shape the international policy discourse. To support these discussions, we present a framework for interpreting global scenario outcomes on energy demand and supply-side transitions through the lens of societal well-being and minimum resource requirements. We develop and apply a new model called Decent living standards and the Environment in Scenarios considering Inequality and Resour…
Past socio-political transitions away from coal and gas show challenges and opportunities ahead
Transitioning away from fossil fuels presents substantial challenges, given the growing mismatch between pledges submitted to international climate negotiations and the mitigation strategies that limit warming to below 1.5 °C or 2 °C presented in the Intergovernmental Panel on Climate Change Sixth Assessment Report. The scientific case for phasing out coal-fired electricity is clear, and many countries are progressing towards this. However, despi…
Feasibility of peak temperature targets in light of institutional constraints
Despite faster-than-expected progress in clean energy technology deployment, global annual CO 2 emissions have increased from 2020 to 2023. The feasibility of limiting warming to 1.5 °C is therefore questioned. Here we present a model intercomparison study that accounts for emissions trends until 2023 and compares cost-effective scenarios to alternative scenarios with institutional, geophysical and technological feasibility constraints and enable…
Entry points for assessing ‘fair shares’ in national mitigation contributions
Fairness considerations have long been central to the international climate change mitigation discourse, generating numerous scientific and philosophical debates. Yet, there remains a pressing need for practical guidance on developing assertions of fairness in national mitigation contributions. The Paris Agreement mandates that subsequent nationally determined contributions (NDCs) submitted under Article 4 represent a progression compared to prev…
Detecting climate milestones on the path to climate stabilization
The era of anthropogenic climate change can be described by defined climate milestones. These milestones mark changes in the historic trajectory of change, and include peak greenhouse gas emissions, peak greenhouse gas concentration, deceleration of warming, net-zero emissions, and a transition to global cooling. However, given internal variability in the Earth system and measurement uncertainty, definitively saying that a milestone has passed re…
Assessing the size and uncertainty of remaining carbon budgets
The remaining carbon budget (RCB), the net amount of CO 2 humans can still emit without exceeding a chosen global warming limit, is often used to evaluate political action against the goals of the Paris Agreement. RCB estimates for 1.5 °C are small, and minor changes in their calculation can therefore result in large relative adjustments. Here we evaluate recent RCB assessments by the IPCC and present more recent data, calculation refinements and…
A multimodel analysis of post-Glasgow climate targets and feasibility challenges
Corporate Greenhouse Gas Emissions’ Data and the Urgent Need for a Science-Led Just Transition
Q&A with Dr. Joeri Rogelj
Net zero targets in science and policy
Since the adoption of the 2015 Paris Agreement and the publication of the 2018 Special Report on Global Warming of 1.5°C of the Intergovernmental Panel on Climate Change, net zero targets have become a central feature in climate policy. This Perspective looks back at the scientific foundations of this recent policy development, the current state of play, and next frontiers for research on this topic
The impact of policy and model uncertainties on emissions projections of the Paris Agreement pledges
Tracking progress towards the Paris Agreement climate goal requires understanding the 2030 emission levels implied by countries’ National Determined Contributions (NDCs). However, key uncertainties and assumptions impact greenhouse gas (GHG) emission projections implied by the NDCs. This study analyses this impact, both globally and for major emitting countries. We find that the assessed uncertainties markedly affect global GHG emission projectio…
Near-term transition and longer-term physical climate risks of greenhouse gas emissions pathways
Agent-Based Modelling of Future Dairy and Plant-Based Milk Consumption for UK Climate Targets
A reduction in the production and consumption of meat and dairy across much of the world is critical for climate change mitigation, the alleviation of ecological stress, and improved health. We update an agentbased model (ABM) of historic UK milk consumption and apply it to scenarios of dairy reduction and adoption of plant-based milk (PBM) out to . The updated model is comprised of a cognitive function, where agents perceive the physical, health…
Net-zero emissions targets are vague
Intergenerational inequities in exposure to climate extremes
Young generations are severely threatened by climate change
Cost and attainability of meeting stringent climate targets without overshoot
Emissions estimations should embed a precautionary principle
The Shared Socioeconomic Pathways and their energy, land use, and greenhouse gas emissions implications
This paper presents the overview of the Shared Socioeconomic Pathways (SSPs) and their energy, land use, and emissions implications. The SSPs are part of a new scenario framework, established by the climate change research community in order to facilitate the integrated analysis of future climate impacts, vulnerabilities, adaptation, and mitigation. The pathways were developed over the last years as a joint community effort and describe plausible…
The marker quantification of the Shared Socioeconomic Pathway 2
Studies of global environmental change make extensive use of scenarios to explore how the future can evolve under a consistent set of assumptions. The recently developed Shared Socioeconomic Pathways (SSPs) create a framework for the study of climate-related scenario outcomes. Their five narratives span a wide range of worlds that vary in their challenges for climate change mitigation and adaptation. Here we provide background on the quantificati…
Analysis of the Copenhagen Accord pledges and its global climatic impacts—a snapshot of dissonant ambitions
This analysis of the Copenhagen Accord evaluates emission reduction pledges by individual countries against the Accord's climate-related objectives. Probabilistic estimates of the climatic consequences for a set of resulting multi-gas scenarios over the 21st century are calculated with a reduced complexity climate model, yielding global temperature increase and atmospheric CO 2 and CO 2 -equivalent concentrations. Provisions for banked surplus em…
Discrepancies in historical emissions point to a wider 2020 gap between 2 °C benchmarks and aggregated national mitigation pledges
Author: Rogelj, J. et al.; Genre: Journal Article; Finally published : 2011; Title: Discrepancies in historical emissions point to a wider 2020 gap between 2°C benchmarks and aggregated national mitigation pledges
Implications of potentially lower climate sensitivity on climate projections and policy
Climate sensitivity, the long-term temperature response to CO2, has been notoriously difficult to constrain until today. Estimates based on the observed warming trends favor lower values, while the skill with which comprehensive climate models are able to simulate present day climate implies higher values to be more plausible. We find that much lower values would postpone crossing the 2 degrees C temperature threshold by about a decade for emissi…
Can Paris pledges avert severe climate change?
Reducing risks of severe outcomes and improving chances of limiting warming to 2°C
Zero emission targets as long-term global goals for climate protection
Recently, assessments have robustly linked stabilization of global-mean temperature rise to the necessity of limiting the total amount of emitted carbon-dioxide (CO2). Halting global warming thus requires virtually zero annual CO2 emissions at some point. Policymakers have now incorporated this concept in the negotiating text for a new global climate agreement, but confusion remains about concepts like carbon neutrality, climate neutrality, full …
Impact of short-lived non-CO 2 mitigation on carbon budgets for stabilizing global warming
Limiting global warming to any level requires limiting the total amount of CO 2 emissions, or staying within a CO 2 budget. Here we assess how emissions from short-lived non-CO 2 species like methane, hydrofluorocarbons (HFCs), black-carbon, and sulphates influence these CO 2 budgets. Our default case, which assumes mitigation in all sectors and of all gases, results in a CO 2 budget between 2011-2100 of 340 PgC for a >66% chance of staying below…
Mitigation choices impact carbon budget size compatible with low temperature goals
Global-mean temperature increase is roughly proportional to cumulative emissions of carbon-dioxide (CO2). Limiting global warming to any level thus implies a finite CO2 budget. Due to geophysical uncertainties, the size of such budgets can only be expressed in probabilistic terms and is further influenced by non-CO2 emissions. We here explore how societal choices related to energy demand and specific mitigation options influence the size of carbo…
Differential climate impacts for policy-relevant limits to global warming
Robust appraisals of climate impacts at different levels of global-mean temperature increase are vital to guide assessments of dangerous anthropogenic interference with the climate system. The 2015 Paris Agreement includes a two-headed temperature goal: "holding the increase in the global average temperature to well below 2 °C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5 °C". Despite the prominence of …
Paris Agreement climate proposals need a boost to keep warming well below 2 °C
Regional Low-Emission Pathways from Global Models
Simulating the Earth system response to negative emissions
Natural carbon sinks currently absorb approximately half of the anthropogenic CO2 emitted by fossilfuel burning, cement production and land-use change. However, this airborne fraction may change inthe future depending on the emissions scenario. An important issue in developing carbon budgets toachieve climate stabilisation targets is the behaviour of natural carbon sinks, particularly under lowemissions mitigation scenarios as required to meet th…
Carbon budgets and energy transition pathways
Scenarios from integrated assessment models can provide insights into how carbon budgets relate to other policy-relevant indicators by including information on how fast and by how much emissions can be reduced. Such indicators include the peak year of global emissions, the decarbonisation rate and the deployment of low-carbon technology. Here, we show typical values for these indicators for different carbon budgets, using the recently compiled IP…
The marker quantification of the Shared Socioeconomic Pathway 2
Studies of global environmental change make extensive use of scenarios to explore how the future can evolve under a consistent set of assumptions. The recently developed Shared Socioeconomic Pathways (SSPs) create a framework for the study of climate-related scenario outcomes. Their five narratives span a wide range of worlds that vary in their challenges for climate change mitigation and adaptation. Here we provide background on the quantificati…
The Shared Socioeconomic Pathways and their energy, land use, and greenhouse gas emissions implications
This paper presents the overview of the Shared Socioeconomic Pathways (SSPs) and their energy, land use, and emissions implications. The SSPs are part of a new scenario framework, established by the climate change research community in order to facilitate the integrated analysis of future climate impacts, vulnerabilities, adaptation, and mitigation. The pathways were developed over the last years as a joint community effort and describe plausible…
Emission budgets and pathways consistent with limiting warming to 1.5 °C
A roadmap for rapid decarbonization
Emissions inevitably approach zero with a “carbon law”
Characterizing half‐a‐degree difference
The Paris Agreement long‐term global temperature goal refers to two global warming levels: well below 2°C and 1.5°C above preindustrial. Regional climate signals at specific global warming levels, and especially the differences between 1.5°C and 2°C, are not well constrained, however. In particular, methodological challenges related to the assessment of such differences have received limited attention. This article reviews alternative approaches …
Linking sea level rise and socioeconomic indicators under the Shared Socioeconomic Pathways
In order to assess future sea level rise and its societal impacts, we need to study climate change pathways combined with different scenarios of socioeconomic development. Here, we present sea level rise (SLR) projections for the Shared Socioeconomic Pathway (SSP) storylines and different year-2100 radiative forcing targets (FTs). Future SLR is estimated with a comprehensive SLR emulator that accounts for Antarctic rapid discharge from hydrofract…
A low energy demand scenario for meeting the 1.5 °C target and sustainable development goals without negative emission technologies
Crop productivity changes in 1.5 °C and 2 °C worlds under climate sensitivity uncertainty
Following the adoption of the Paris Agreement, there has been an increasing interest in quantifying impacts at discrete levels of global mean temperature (GMT) increase such as 1.5 C and 2 C above pre-industrial levels. Consequences of anthropogenic greenhouse gas emissions on agricultural productivity have direct and immediate relevance for human societies. Future crop yields will be affected by anthropogenic climate change as well as direct eff…
Global exposure and vulnerability to multi-sector development and climate change hotspots
Understanding the interplay between multiple climate change risks and socioeconomic development is increasingly required to inform effective actions to manage these risks and pursue sustainable development. We calculate a set of 14 impact indicators at different levels of global mean temperature (GMT) change and socioeconomic development covering water, energy and land sectors from an ensemble of global climate, integrated assessment and impact m…
Inclusive climate change mitigation and food security policy under 1.5 °C climate goal
Climate change mitigation to limit warming to 1.5 C or well below 2 C, as suggested by the Paris Agreement, can rely on large-scale deployment of land-related measures (e.g. afforestation, or bioenergy production). This can increase food prices, and hence raises food security concerns. Here we show how an inclusive policy design can avoid these adverse side-effects. Food-security support through international aid, bioenergy tax, or domestic reall…
Connecting the sustainable development goals by their energy inter-linkages
The United Nations' Sustainable Development Goals (SDGs) provide guide-posts to society as it attempts to respond to an array of pressing challenges. One of these challenges is energy; thus, the SDGs have become paramount for energy policy-making. Yet, while governments throughout the world have already declared the SDGs to be 'integrated and indivisible', there are still knowledge gaps surrounding how the interactions between the energy SDG targ…
Negative emissions—Part 2
The most recent IPCC assessment has shown an important role for negative emissions technologies (NETs) in limiting global warming to 2 °C cost-effectively. However, a bottom-up, systematic, reproducible, and transparent literature assessment of the different options to remove CO2 from the atmosphere is currently missing. In part 1 of this three-part review on NETs, we assemble a comprehensive set of the relevant literature so far published, focus…
Negative emissions—Part 1
With the Paris Agreement's ambition of limiting climate change to well below 2 C, negative emission technologies (NETs) have moved into the limelight of discussions in climate science and policy. Despite several assessments, the current knowledge on NETs is still diffuse and incomplete, but also growing fast. Here, we synthesize a comprehensive body of NETs literature, using scientometric tools and performing an in-depth assessment of the quantit…
Environmental Science (53 works) · Climate Change Policy and Economics (47 works) · Climate change (45 works) · Economics (41 works) · Natural resource economics (35 works) · Greenhouse gas (28 works) · Atmospheric and Environmental Gas Dynamics (26 works) · Global warming (26 works) · Computer Science (22 works) · Climatology (17 works)