Browsing by Author "Dunford, Robert W."

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    Climate change impact modelling needs to include cross-sectoral interactions
    (Nature Publishing Group, 2016-05-23) Harrison, P. A.; Dunford, Robert W.; Holman, Ian P.; Rounsevell, M. D. A.
    Climate change impact assessments often apply models of individual sectors such as agriculture, forestry and water use without considering interactions between these sectors. This is likely to lead to misrepresentation of impacts, and consequently to poor decisions about climate adaptation. However, no published research assesses the differences between impacts simulated by single-sector and integrated models. Here we compare 14 indicators derived from a set of impact models run within single-sector and integrated frameworks across a range of climate and socio-economic scenarios in Europe. We show that single-sector studies misrepresent the spatial pattern, direction and magnitude of most impacts because they omit the complex interdependencies within human and environmental systems. The discrepancies are particularly pronounced for indicators such as food production and water exploitation, which are highly influenced by other sectors through changes in demand, land suitability and resource competition. Furthermore, the discrepancies are greater under different socio-economic scenarios than different climate scenarios, and at the sub-regional rather than Europe-wide scale.
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    Synthesizing plausible futures for biodiversity and ecosystem services in Europe and Central Asia using scenario archetypes
    (Resilience Alliance, 2019-06-18) Harrison, Paula A.; Harmáčková, Zuzana V.; Karabulut, Armağan Aloe; Brotons, Lluis; Cantele, Matthew; Claudet, Joachim; Dunford, Robert W.; Guisan, Antoine; Holman, Ian P.; Jacobs, Sander; Kok, Kasper; Lobanova, Anastasia; Morán-Ordóñez, Alejandra; Pedde, Simona; Rixen, Christian; Santos-Martín, Fernando; Schlaepfer, Martin A.; Solidoro, Cosimo; Sonrel, Anthony; Hauck, Jennifer
    Scenarios are a useful tool to explore possible futures of social-ecological systems. The number of scenarios has increased dramatically over recent decades, with a large diversity in temporal and spatial scales, purposes, themes, development methods, and content. Scenario archetypes generically describe future developments and can be useful in meaningfully classifying scenarios, structuring and summarizing the overwhelming amount of information, and enabling scientific outputs to more effectively interface with decision-making frameworks. The Intergovernmental Platform for Biodiversity and Ecosystem Services (IPBES) faced this challenge and used scenario archetypes in its assessment of future interactions between nature and society. We describe the use of scenario archetypes in the IPBES Regional Assessment of Europe and Central Asia. Six scenario archetypes for the region are described in terms of their driver assumptions and impacts on nature (including biodiversity) and its contributions to people (including ecosystem services): business-as-usual, economic optimism, regional competition, regional sustainability, global sustainable development, and inequality. The analysis shows that trade-offs between nature’s contributions to people are projected under different scenario archetypes. However, the means of resolving these trade-offs depend on differing political and societal value judgements within each scenario archetype. Scenarios that include proactive decision making on environmental issues, environmental management approaches that support multifunctionality, and mainstreaming environmental issues across sectors, are generally more successful in mitigating trade-offs than isolated environmental policies. Furthermore, those scenario archetypes that focus on achieving a balanced supply of nature’s contributions to people and that incorporate a diversity of values are estimated to achieve more policy goals and targets, such as the UN Sustainable Development Goals and the Convention on Biological Diversity Aichi targets. The scenario archetypes approach is shown to be helpful in supporting science-policy dialogue for proactive decision making that anticipates change, mitigates undesirable trade-offs, and fosters societal transformation in pursuit of sustainable development.
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    Trade-offs are unavoidable in multi-objective adaptation even in a post-Paris Agreement world
    (Elsevier, 2019-08-21) Papadimitriou, Lamprini; Holman, Ian P.; Dunford, Robert W.; Harrison, Paula A.
    In a post-Paris Agreement world, where global warming has been limited to 1.5 or 2 °C, adaptation is still needed to address the impacts of climate change. To reinforce the links between such climate actions and sustainable development, adaptation responses should be aligned with goals of environmental conservation, economic development and societal wellbeing. This paper uses a multi-sectoral integrated modelling platform to evaluate the impacts of a + 1.5 °C world to the end of the 21st century under alternative Shared Socioeconomic Pathways (SSPs) for Europe. It evaluates the ability of adaptation strategies to concurrently improve a range of indicators, relating to sustainable development, under the constraints imposed by the contrasting SSPs. The spatial synergies and trade-offs between sustainable development indicators (SDIs) are also evaluated across Europe. We find that considerable impacts are present even under low-end climate change, affecting especially biodiversity. Even when the SDIs improve with adaptation, residual impacts of climate change affect all the SDIs, apart from sustainable production. All but one of the adaptation strategies have unintended consequences on one or multiple SDIs, although these differ substantially between strategies, regions and socio-economic scenarios. The exception was the strategy to increase social and human capital. Other strategies that lead to successful adaptation with limited unintended consequences are those aiming at adoption of sustainable behaviours and implementation of sustainable water management. This work stresses the continuing importance of adaptation even under 1.5 °C or 2 °C of global warming. Further, it demonstrates the need for policy-makers to develop holistic adaptation strategies that take account of the synergies and trade-offs between sectoral adaptation strategies, sectors and regions, and are also constrained by scenario context to avoid over-optimistic assessments.