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This Intergovernmental Panel on Climate Change Special Report (IPCC-SREX) explores the challenge of understanding and managing the risks of climate extremes to advance climate change adaptation. Extreme weather and climate events, interacting with exposed and vulnerable human and natural systems, can lead to disasters. Changes in the frequency and severity of the physical events affect disaster risk, but so do the spatially diverse and temporally dynamic patterns of exposure and vulnerability. Some types of extreme weather and climate events have increased in frequency or magnitude, but populations and assets at risk have also increased, with consequences for disaster risk. Opportunities for managing risks of weather- and climate-related disasters exist or can be developed at any scale, local to international. Prepared following strict IPCC procedures, SREX is an invaluable assessment for anyone interested in climate extremes, environmental disasters and adaptation to climate change, including policymakers, the private sector and academic researchers.

Continuous climate change forces cities to take actions to prevent risks and adapt urban spaces to new conditions. The experience of many European cities in recent years shows that actions adapting urban space to climate change have become an important part of local policy. The subject of the article is the adaptation activities planned and implemented for climate change in urban spaces. The purpose of this article is to classify and identify adaptation activities carried out in large cities. The authors analyzed data from 44 Polish cities and placed them in the context of leading adaptation activities carried out in selected European cities. The purpose of the detailed research is to compare the number and type of activities planned and implemented on the scale of individual Polish cities, indicating dominant and minority activities. The authors conclude that with the passage of time, climate change adaptation activities will have an increasing impact on shaping the landscape of European cities, including those of Poland. Their number will gradually increase, as will the awareness of the city authorities and the activity of local communities. The types of activity will also change and, with them the quality of urban spaces and the quality of life of residents. The authors also conclude that further research will need to conduct quantitative and qualitative studies in the context of the effectiveness of the adaptation process in urban spaces, resulting from the evaluation and monitoring of both systematically updated planning and strategic documents and implemented spatial programs and interventions.

Climate change is expected to impact cacao cultivation in Ecuador, the fifth largest cacao producing country in the world and largest exporter of fine flavour cacao. The objective of this study was to evaluate the future impact of climate change on the suitable distribution of cultivated and wild cacao and identify areas where climate change tolerant genotypes may occur in Ecuador. Using 26,152 presence points for cultivated cacao and 95 presence points for wild cacao, we modelled the present suitability distribution of cultivated and wild cacao and performed future climate projections under two greenhouse gas emission scenarios (SSP2-4.5 and SSP3-7.0) and two time periods (2050s and 2070s). For both cultivated and wild cacao, we constructed six different ensemble models employing different filtering methods for presence points, we projected each ensemble model to future climatic conditions, and we then built the final maps of present distribution and future projections based on the majority-vote criterion. Our future projections predict a 8–16% contraction and 19–21% expansion of the currently suitable area of cultivated cacao, while wild cacao is expected to maintain most of its suitable area and experience a further 7–12% expansion in the future. Ecogeographical zones are predicted to change in 23-33% of the combined distributions of cultivated and wild cacao. We identified the areas in Ecuador where populations of climate change tolerant genotypes are expected to occur. Interventions to promote adaptation to climate change will be required in cacao cultivation areas that are expected to be impacted by climate change in Ecuador, including the use of tolerant genotypes.

Purpose of Review This paper discusses three scientific frontiers that need to be advanced in order to support decision-makers and practitioners in charge of operational decisions and action on the design and implementation of concrete adaptation policies and actions. These frontiers refer to going beyond the (1) incremental vs. transformational and (2) maladaptation vs. adaptation dichotomies and to advancing knowledge on (3) adaptation measures’ effectiveness and roles in designing context-specific adaptation pathways. Recent Findings Dealing with adaptation to climate change on the ground often means answering three obvious but critical questions: what to do, where and when? These questions challenge the scientific community’s capacity to link conceptual advances (e.g. on transformative adaptation) and ground-rooted needs across sectors and regions (on solutions, governance arrangements, etc.). Summary We argue that the three abovementioned frontiers represent the most burning challenges to the Adaptation Science community to help addressing climate-related societal needs. We also demonstrate that they are intertwined as moving one frontier forward will facilitate moving the others forward.

Policy instruments can help put climate adaptation plans into action. Here, we propose a method for the systematic assessment and selection of policy instruments for stimulating adaptation action. The multi-disciplinary set of six assessment criteria is derived from economics, policy, and legal studies. These criteria are specified for the purpose of climate adaptation by taking into account four challenges to the governance of climate adaptation: uncertainty, spatial diversity, controversy, and social complexity. The six criteria and four challenges are integrated into a step-wise method that enables the selection of instruments starting from a generic assessment and ending with a specific assessment of policy instrument mixes for the stimulation of a specific adaptation measure. We then apply the method to three examples of adaptation measures. The method’s merits lie in enabling deliberate choices through a holistic and comprehensive set of adaptation specific criteria, as well as deliberative choices by offering a stepwise method that structures an informed dialog on instrument selection. Although the method was created and applied by scientific experts, policy-makers can also use the method.

According to current forecasts, global heating is likely to exceed 2.8 °C by the end of this century. This makes substantial adaptation measures necessary to secure a broad basis for livelihood provision and the conservation of biodiversity. While the implementation of top-down and technocratic adaptation efforts predominates, related adaptation shortcomings of a socio-economic and ecological nature are becoming more and more apparent. Community-based adaptation (CBA), with its participatory, inclusive and needs-based bottom-up approach, offers a promising and powerful alternative. This article uses a semi-systematic literature review approach to screen the current literature and identify core issues of CBA. Linking communality, locality, multidimensionality, power imbalances, transformative potential, localisation, the triad of adaptation metrics and nature-based adaptation to corresponding potential actions for practical implementations provides a more holistic conceptualisation and broadens the horizons for further learning, research and improved applications.

Agricultural production is already, and obviously, affected by climate change. Adapting to climate change includes reducing future risks to ensure yield quality and quantity and considers seizing any potential opportunities induced by climate change. In higher latitude areas, such as Norway, cold climate limits the cultivation of fruits. An increase in temperature offers more favorable conditions for fruit production. In this study, using available phenological observations (full blooming) and harvest dates, and meteorological data from the experimental orchard of NIBIO Ullensvang, the minimum heat requirements for growing different apple varieties are determined. Those criteria are used for zoning of the areas with heat favorable conditions for apple growing. Data on six varieties were used, with lower and higher requirements for heat for fruit development (Discovery, Gravenstein, Summerred, Aroma, Rubinstep, and Elstar). High resolution daily temperature data were generated and used for zoning of the areas with heat favorable conditions for apple growing within the selected domain, which includes Western Norway, Southern Norway, Eastern Norway, and the western part of Trøndelag, Mid-Norway. Dynamics of the change in such surfaces was assessed for the period of 1961–2020. The total surface with favorable heat conditions for growing the varieties with lesser requirement for heat increased three times during this period. The growing of more heat-demanding varieties increased from near zero to about 2.5% of the studied land surface. In the period of 2011–2020, surface area with favorable heat conditions for apple growing was almost 27,000 km2, and a surface area of about 4600 km2 can sustain growing of more heat-demanding varieties. The presented results show the increasing potential of the climate of Norway for apple cultivation and highlight the importance of implementation of fruit production planned according to climate change trends, including the assessment of potential risks from climate hazards. However, the methodology for determining heat requirements can be improved by using phenological ripening dates if available, rather than harvest dates which are impacted by human decision. Zoning of areas with the potential of sustainable apple growing requires the use of future climate change assessments and information on land-related features.

Agricultural production is inextricably tied to climate, making agriculture one of the most climate-sensitive of all economic sectors. In countries such as Uzbekistan, the risks of climate change for the agricultural sector are a particularly immediate and important problem because the majority of the rural population depends either directly or indirectly on agriculture for their livelihoods. Recent trends in water availability and the presence of drought in Uzbekistan have underscored these risks, as has the presence of agricultural pests that may not have previously been found in Uzbekistan. The need to adapt to climate change in all sectors is on the agenda of national governments and development partners. The capacity to adapt to climatic changes, both in mitigating risks and in taking advantage of the opportunities that climate change can create, is in part dependent on financial resources. As a result, development partners will continue to have an important role in enhancing the adaptive capacity of the Uzbekistan agriculture sector. In response to these challenges, the World Bank and the government of Uzbekistan embarked on a joint study to identify and prioritize options for climate change adaptation of the agricultural sector. This report provides a menu of practical climate change adaptation options for the agriculture and water resources sectors, along with specific recommendations, which are tailored to three distinct agro-ecological zones (AEZs) within Uzbekistan, as well as over-arching actions at the national level. This report is organized as follows: chapter one gives current conditions for Uzbek agriculture and climate; chapter two presents design and methodology; chapter three deals with impacts of climate change on agriculture in Uzbekistan; chapter four presents identification of adaptation options for managing risk to Uzbekistan's agricultural systems; chapter five presents cost-benefit analysis; and chapter six gives options to improve climate resilience of Uzbekistan's agriculture sector.

The forests of the Oka basin were used as an example in an experiment to solve numerically the dual-purpose task set by the Paris Climate Change Agreement (2015): to assess CO 2 absorption from the atmosphere by forest communities under the current global warming and forest adaptation to climate change. The regulation processes of the carbon cycle by the forest cover, with the effect of mitigating the predicted warming, were revealed with the help of empirical–statistical modeling. The adaptation potential and role of forests in carbon adsorption and conservation were assessed. The proposed index of elastic–plastic functional stability of forest ecosystems was used as an adaptation indicator. Forest sustainability as a direct environmental factor in greenhouse gas absorption was estimated in statistical terms. An unambiguous idea of the significant increase in the ecological resources of boreal and nemoral forests was obtained: their adsorption capacity increased with an increase in the adaptation potential. During the predicted 100-year period, the overall elastic–plastic stability of forest formations should increase in the region, especially at the current velocity of global warming. Due to this fact, a significant increase in the ability of boreal and, to a lesser extent, nemoral forests to absorb greenhouse gases should also be expected. Based on the obtained results of regional prediction modeling, coupled study of the adsorption capacity of forest biomes and their adaptation to the changing climate is effective.

Climate change is a global phenomenon that can affect neighbouring territories and the communities residing there in different ways. This fact, which is associated with the specificities of each of the territories, leads to the need to implement adaptive measures to address the new reality imposed by climate change and to create more resilient territories and communities capable of facing this new paradigm. The more these measures are adjusted to the specificities of the territories and their communities, the more efficient they will be. Thus, it is essential to have a thorough understanding of the evolution of the climate on the local scale and the real needs of the resident populations. To identify these needs, a survey was conducted, and it was found that the dominant opinion of all respondents, comprising citizens residing in Portugal, was that climate change can affect geographically close territories in different ways. In the present work, the municipality of Guimarães, located in the north of Portugal, was used as a case study, where a comparative analysis was carried out to assess the period between the current climate, characterized by the period of 1971–2021, and the climate of 100 years ago, characterized by the decade of 1896–1905, to determine trends for the variables of air temperature and precipitation. It was found that the temperature in the winter months increased, with less uniformity in the distribution of precipitation throughout the year. These differences in the air temperature and precipitation, as variables, lead to the need to plan adaptive measures that can be implemented so that the territory and its communities become more resilient to climate change.