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In this study, soil moisture retrievals of the combined active–passive ESA Climate Change Initiative (CCI) soil moisture product are assimilated into the Noah-MP land surface model over Europe using a one-dimensional ensemble Kalman filter and an 18-yr study period. The performance of the data assimilation (DA) system is evaluated by comparing it with a model-only experiment (at in situ sites) and by assessing statistics of innovations and increments as DA diagnostics (over the entire domain). For both assessments, we explore the impact of three design choices, resulting in the following insights. 1) The magnitude of the assumed observation errors strongly affects the skill improvements evaluated against in situ stations and internal diagnostics. 2) Choosing between climatological or monthly cumulative distribution function matching as the observation bias correction method only has a marginal effect on the in situ skill of the DA system. However, the internal diagnostics suggest a more robust system parameterization if the observations are rescaled monthly. 3) The choice of atmospheric reanalysis dataset to force the land surface model affects the model-only skill and the DA skill improvements. The model-only skill is higher with input from the MERRA-2 than with input from the ERA5 reanalysis, resulting in larger DA skill improvements for the latter. Additionally, we show that the added value of the DA strongly depends on the quality of the satellite retrievals and land cover, with the most substantial soil moisture skill improvements occurring over croplands and skill degradation occurring over densely forested areas. [ABSTRACT FROM AUTHOR]

This paper aims to improve understanding of how EU citizens' left-right political positions and ideological polarization on climate change affect their views on both agriculture and diet in the context of climate change policy. It uses the methods of survey research and quantitative analyses of the data (principal components and regression analysis). The work combines the Farm- and Fork-related branches of Eurobarometer 93.2 (2020) and focuses on citizens' responses to a more climate-friendly agriculture and their ideas about 'eating a healthy and sustainable diet'. The analysis revealed different degrees of citizen support for a more climate-friendly agriculture and climate-friendly dietary options (including meat reduction). Citizens' left-right political position correlated negatively with support for a more climate-friendly agriculture and support for climate-friendly dietary options, but only in the Northwestern European countries. In these countries, the expected positive correlations between level of education and pro-environmental variables were found, but these correlations were not observed among the right-leaning participants. However, the positive correlation between support for a more climate-friendly agriculture and support for climate-friendly dietary options was less strongly affected by left-right political positions. Hence, public opinion is moving in the direction of EU climate policy over time; however, citizens did not fully acknowledge the priority of meat reduction in this context. Political and ideological polarization has seriously interfered with attempts to promote a more climate-friendly agriculture (Farm) and changes in dietary thinking including meat reduction (Fork). To promote these changes, more work must be done on the role of cultural identities in relation to climate issues. Yet, EU citizens showed an increasing support for more climate-friendly agriculture, which correlated positively with support for climate-friendly dietary options across the left-right political spectrum. Science-based information regarding climate risks and/or loyalty to local farmers may play a role in shaping these opinions. The priority of meat reduction needs considerably more attention to achieve the EU's climate objectives. For citizens, both nutritional (health) and environmental (i.e. climate change, as well as species decline and farm animal welfare) reasons can be strong motivating factors to consider meat reduction. [ABSTRACT FROM AUTHOR]

Although several studies have concluded that excess winter deaths are not a suitable indicator of cold-related health impacts, the investigation of temporal fluctuation in mortality across many European countries could provide an insight into the seasonal variation of deaths at different climatic conditions. We investigated the evolution over time of the Excess Winter Deaths Index (EWDI) and the Summer-to-Winter Deaths ratio (S/W) for the period 1960–2018 and the temporal fluctuation of the Heating and Cooling Degree Days indices for the period 1979–2020. We found a clear spatial pattern of EWDI with statistically significant decreasing trends in Mediterranean countries and increasing trends in Nordic countries. On the other hand, S/W index shown increasing trends in Mediterranean region and decreasing trends in Nordic countries. Statistical analysis of Heating Degree Days index showed significant decreasing trends for all European countries, probably due to the appearance of milder winters. Also, the values of Cooling Degree Days index exhibited a statistically significant upward trend for Mediterranean countries, mainly due to increased frequency of warmer summers, as a result of climate change. This study shows that the differences in seasonal variation of mortality between European countries are likely to disappear, as the climate gets warmer. A possible explanation for our findings is that climate change already brings milder winters and hotter summers to the Mediterranean countries, while in the Nordic countries global warming causes less severe winters and more pleasant summers as shown from Heating and Cooling Degree Days analysis. In addition to providing a basis to investigate potential effects of global warming on human mortality, the findings of this study are likely to be crucial for climate change policy and developing relevant adaptation strategies in Europe. [ABSTRACT FROM AUTHOR]

Robinia pseudoacacia is one of the most frequent non‐native species in Europe. It is a fast‐growing tree of high economic and cultural importance. On the other hand, it is an invasive species, causing changes in soil chemistry and light regime, and consequently altering the plant communities. Previously published models developed for the potential distribution of R. pseudoacacia concerned 2070, and were based mainly on data from Western and Central Europe; here we extended these findings and included additional data from Eastern Europe. To fill the gap in current knowledge of R. pseudoacacia distribution and improve the reliability of forecasts, we aimed to (i) determine the extent to which the outcome of range modeling will be affected by complementing R. pseudoacacia occurrence data with sites from Central, Southeastern, and Eastern Europe, (ii) identify and quantify the changes in the availability of climate niches for 2050 and 2070, and discuss their impacts on forest management and nature conservation. We showed that the majority of the range changes expected in 2070 will occur as early as 2050. In comparison to previous studies, we demonstrated a greater eastward shift of potential niches of this species and a greater decline of potential niches in Southern Europe. Consequently, future climatic conditions will likely favor the occurrence of R. pseudoacacia in Central and Northeastern Europe where this species is still absent or relatively rare. There, controlling the spread of R. pseudoacacia will require monitoring sources of invasion in the landscape and reducing the occurrence of this species. The expected effects of climate change will likely be observed 20 years earlier than previously forecasted. Hence we highlighted the urgent need for acceleration of policies aimed at climate change mitigation in Europe. Also, our results showed the need for using more complete distribution data to analyze potential niche models. [ABSTRACT FROM AUTHOR]

Recent research and real-world processes suggest that effective climate change mitigation policies are not feasible without at least a certain degree of public support. Hence, we investigate the link between existing domestic energy policies and individual policy instrument preferences in 21 European countries. We assume a policy feedback perspective and, thus, start from the idea that the current domestic energy context influences what future policies are possible and preferred by citizens. High political trust and strong climate change attitudes are expected to strengthen this relationship. Our results do not lend support to a general link between existing policies and future policy preferences. However, we find evidence of a positive policy feedback in individuals with strong climate change attitudes and/or high levels of political trust, which, depending on each country's current energy policy, either hinders or facilitates the energy transition. [ABSTRACT FROM AUTHOR]

Weighting of impacts is frequently applied to enable the prioritization of life cycle assessment (LCA) results for the support of decision making. Most Distance-to-Target (DtT) weighting approaches consider policy targets, whereas potential is seen in the weighting of environmental impacts on a more scientific basis. This study aims at the comparison of science-based (SB) to policy-based (PoB) DtT weighting approaches as well as the application in a comparative case study for the domestic footprint of the European Union. The developed approaches integrated SB targets from ten environmental impact categories into the DtT weighting method of the Ecological Scarcity Method in an effort to derive SB eco-factors. In addition to SB eco-factors based on existing weighting factors for Europe from the literature, weighting factors for the European Union were developed. The application of the eco-factors in the case study showed that the SB approach led to three times higher absolute weighting results in contrast to PoB results. SB weighting was dominated by the impact category climate change with the strictest weighting factors in all approaches considered and a share of 87–92%. For the remaining impact categories, common PoB weighting factors were generally stricter. PoB results showed a more balanced distribution, with shares of 64% for climate change, 10% for photochemical ozone formation, 7% for acidification, and 7% for terrestrial eutrophication. Science-based targets can not replace conventional PoB weighting approaches but should be integrated into the weighting step to provide a more comprehensive view of the environmental performance of product systems. SB weighting results are an additional source of information on environmental sustainability regarding environmental carrying capacity that can broaden the basis for decision making. • Comparison of targets based on science and policy via distance-to-target weighting. • Development of weighting sets for comparative application to EU domestic footprint. • Science-based results are dominated by the impact category climate change. • Lower results in policy-based weighting due to less strict climate policy targets. • Analysis of EU policy regarding effectiveness to stay within carrying capacities. [ABSTRACT FROM AUTHOR]

The European Union has pioneered the adoption of binding greenhouse gas emissions reduction targets and measures to address the climate change challenge for more than a decade. Amongst them, the European Union Emissions Trading System plays a central role. This article addresses the evolution of European climate policies, from the first emission reduction targets that were assumed under the Kyoto Protocol to the recent adoption of the 2030 climate an energy framework. Due to its importance, special attention is paid to the European Union emissions trading system, an essential tool to meet these targets at regional level and a cornerstone of European climate policies, now working for more than ten years. In this context, the European Union emissions have significantly decreased, although the effort ahead is, without any doubt, still remarkable. [ABSTRACT FROM AUTHOR]

Comparative policy studies face a number of methodological challenges where conceptualization of the object of comparison-policy output-is the most fundamental. On the basis of three common approaches of the study of policy output, we reconsider this widely applied concept and propose a refined measure as a function of both density (number of policy instruments) and intensity (content of policy instruments). We theoretically derive six policy-intensity measures (objectives, scope, integration, budget, implementation, and monitoring), which are used for weighting national policy instruments on an Index of Climate Policy Activity. The article presents an empirical application of this measurement approach. Focusing on national climate policy instruments in the energy production sector in Austria, Germany, and the United Kingdom, we investigate changes in the countries' policy portfolios from 1998 to 2010. The article demonstrates that our Index of Climate Policy Activity provides a reliable and valid measurement for national policy output that can be applied for comparative analyses of policy output. [ABSTRACT FROM AUTHOR]

Why has Europe implemented a quite-proactive climate policy while the US has adopted a far less ambitious climate strategy? Does variation in security concerns or other factors better explain this difference in policy? Using a multi-method case study approach, the authors find that in the US, constructions of climate change as a security threat play an important role in developing public support. In Europe, leadership and opportunity discourses predominate. Other factors including centralization of governance, trust in the technocratic elite, and cultural norms contribute to the variation in policy construction. [ABSTRACT FROM AUTHOR]

Urban areas are pivotal to global adaptation and mitigation efforts. But how do cities actually perform in terms of climate change response? This study sheds light on the state of urban climate change adaptation and mitigation planning across Europe. Europe is an excellent test case given its advanced environmental policies and high urbanization. We performed a detailed analysis of 200 large and medium-sized cities across 11 European countries and analysed the cities' climate change adaptation and mitigation plans. We investigate the regional distribution of plans, adaptation and mitigation foci and the extent to which planned greenhouse gas (GHG) reductions contribute to national and international climate objectives. To our knowledge, it is the first study of its kind as it does not rely on self-assessment (questionnaires or social surveys). Our results show that 35 % of European cities studied have no dedicated mitigation plan and 72 % have no adaptation plan. No city has an adaptation plan without a mitigation plan. One quarter of the cities have both an adaptation and a mitigation plan and set quantitative GHG reduction targets, but those vary extensively in scope and ambition. Furthermore, we show that if the planned actions within cities are nationally representative the 11 countries investigated would achieve a 37 % reduction in GHG emissions by 2050, translating into a 27 % reduction in GHG emissions for the EU as a whole. However, the actions would often be insufficient to reach national targets and fall short of the 80 % reduction in GHG emissions recommended to avoid global mean temperature rising by 2 °C above pre-industrial levels. [ABSTRACT FROM AUTHOR]

The aim of this article is to give an overview and systematic characterization of different national approaches to developing strategies of climate change adaptation from a spatial planning or regional development perspective, respectively. Based on this analysis, recommendations are made for the implementation of the Territorial Agenda of the European Union. The central research hypotheses addressed in this article are: (1) climate change impacts in Europe are distributed differently in European regions which influence the design of national adaptation strategies (NASs) in Europe as well as the planning-related fields of action; (2) the legal framework and the political-administrative system significantly determine how national adaptation responses are designed and by which institutions they are implemented and (3) spatial planning has the potential to play an important role in climate change adaptation due to its integrative, cross-sectoral character. In order to discuss the hypotheses, a meta-evaluation of already existing assessments of climate adaptation strategies was carried out, as well as nine in-depth country studies (Finland, France, Germany, Greece, Hungary, Poland, Spain, The Netherlands and the UK). The results show that spatial planning is only given minor attention in the assessed analyses and national strategies and that it is rather a matter of political willingness and capacity building than particular instruments or a high climate change vulnerability if spatial planning, however, plays an important role in an NAS. [ABSTRACT FROM AUTHOR]

Climate change adaptation strategies are emerging across Europe as societies attempt to adapt to the challenges of a changing environment. Social constructivist analyses of environmental policy - especially those emphasising 'framing' - can be very useful in teasing out the framings of policy problems such as adaptation. They can also shed light on the underlying assumptions that steer and guide public and environmental policy. Using the theoretical concept of framing to analyse adaptation policies across different scales of governance in four European countries - Sweden, Finland, the United Kingdom and Italy - and drawing on policy documents from those countries, as well as semi-structured interviews with practitioners, the development of adaptation policy processes and especially how adaptation has been defined within these processes are examined. Four major framings of adaptation are identified: 'planning', 'economic risk', 'vulnerability' and 'existing measures'. These frames affect how adaptation is conceptualised, policy problems defined and, ultimately how policy develops. [ABSTRACT FROM AUTHOR]

The article focuses on the European Union's (EU) White Paper "Adapting To Climate Change: Towards a European Framework for Action." It says that the paper outlines the EU's approach to mitigating European vulnerability to climate change and sets out its commitment to resolving climate change. It also states that the paper is designed as a first step for mainstreaming climate change adaptation throughout EU policy sectors.

Although many of today's ecological, climatic and socio-economic problems seem unprecedented, similar events have occurred in the past. As such, historic periods of climatic and economic volatility can be used as a way of developing frameworks for analyzing today's predicament. Western Europe's “middle ages” (circa 11–14th century) may be one such case. By the 12th century, medieval Europe had shifted from the subsistence agrarian economy that emerged following the collapse of the Roman Empire to one where spatially dispersed trade in agricultural commodities helped support a complex society that devoted considerable resources to cultural works. This shift was facilitated by new institutional arrangements centred on monastic orders that provided access to both new agricultural and food processing technologies as well as trade routes. These institutional arrangements contributed to population growth and land clearing. All of these factors increased the wealth of society but also concentrated this wealth in a small number of communities that were dependent on an ever-increasing and exploited hinterland for resources. Ultimately, this created a tightly coupled continent-wide subsistence system that was vulnerable to the weather, economic and disease shocks of the 14th century when Europe's population declined by perhaps 50%. In exploring this history, the goal of this paper is to draw on a diverse theoretical body of literature (that includes resiliency theory, landscape ecology, political science and ecological economics) to develop a series of hypotheses about how large-scale complex civilizations can become vulnerable to climate change. [Copyright &y& Elsevier]

The author contemplates on the effort of the European Union (EU) and other government agencies in mitigating global climate change. He expresses optimism about future measures from the government agencies who addressed such crisis. The author discusses the political aspect of the global climate change, and stresses the uncertainty on the legal and political framework of a future climate regime. Moreover, he emphasizes the importance of faith to sustain the continued mitigation action.

The article examines Great Britain's policy toward Europe as of September 2008 and how it may develop in the period to 2020. It examines policy possibilities and proposals including conditional Europeanism and a commitment to the European Union (EU), a stalemate position that could lead to possible crisis, and the development of a more committed pro-Europeanism. The authors discuss the possible scenarios and how they might impact British and EU defense policy and foreign policy, as well as the EU climate change agenda and the Euro currency. The article discusses how European integration might influence European policy development in Great Britain.

The article focuses on several initiatives in Europe for the sustainable improvement of food security in face of climate change. It says that Europe, as a global leader in greenhouse gas emission policy, is capable of addressing issues of food insecurity and natural resource preservation. It mentions the Joint Programming Initiative on Agriculture, Food Security and Climate Change (FACCE-JPI), joined by 21 European countries that will tackle with the said issues. It cites various factors to consider for the achievement of goals such as connecting to models of agro-ecology and socioeconomics.

The author reflects on the political activities in European countries. He argues that every issues, including climate change, and globalizations, becomes a way to push nationalism in Europe. An overview of political issues accompanied by social movements in Great Britain is presented. The author implied that the in Europe, giving up utopia means surrendering the power.

The article presents abstracts on sustainable energy policies in Southeast Europe which include the chances and challenges in establishing a sustainable energy and climate protection policy in South East Europe (SEE), improvement of energy efficiency and the use renewable energy sources in Serbia, and the energy policy and financing projects in the energy sector in Romania.