Which are the factors influencing the integration of mitigation and adaptation in climate change plans in Latin American cities?

As cities are major contributors to GHG emissions and places where people face multiple climate change impacts, their critical role in responding to climate change is becoming increasingly evident. Cities are developing climate change action plans (CCAPs) focusing their efforts on reducing GHG emissions and adapting to climate change impacts. Despite having the highest urban population in the world, there are a few studies on urban CCAPs in Latin America and the Caribbean (LAC) region. This study assessed the level of integration of mitigation and adaptation (IMA) in urban climate change plans across 44 major LAC cities. The level of IMA was measured by the utilization of the IMA index, a comprehensive evaluation framework of indicators. The results showed that more than half of the examined LAC cities have a moderate level of IMA. The study further explored and statistically analyzed 42 institutional, socioeconomic and environmental factors to identify which ones potentially drive or constrain the level of IMA. Five out of 42 factors were found to have a significant impact (p-value < 0.05) on the IMA index. Of the five significant factors, memberships in regional networks FLACMA and UCCI respectively, and donor agencies' contribution to the development of urban policies had a positive impact on IMA index; while the national climate fund and membership in the global network Urban LEDS had a negative impact. This suggests that cities are most likely to integrate mitigation and adaptation when the development of their CCAPs are supported by donor agencies or collaborating with other cities. The results highlight the important role of donor agencies, international organizations and cities' networks on providing the necessary capacity to cities for addressing climate change in an integrated manner

Towards the development of an integrated sustainability and resilience benefits assessment framework of urban green growth interventions

Considering the current emerging demographic, urbanization and climatic trends, integrating sustainability and resilience principles into urban development becomes a key priority for decision-makers worldwide. Local and national governments, project developers and other urban stakeholders dealing with the complexities of urban development need projects with clear structure and outcomes in order to inform decision-making and ensure sources of financing. The need for developing an integrated assessment methodology that would capture and quantify multiple urban sustainability and resilience benefits of projects in one common framework and eventually lead to verifiable sustainability and resilience outcomes is immense and challenging at the same time. The main objective of this paper is to present the development of a methodological approach that aims to integrate sustainability and resilience benefits, derived from the implementation of green growth urban projects, into a unified framework of criteria addressing environmental, social, economic and institutional perspectives. The proposed sustainability and resilience benefits assessment (SRBA) methodology is a combination of top down and bottom up approaches, including GIS-based scenario building. The different types of sustainability and resilience benefits of urban green growth projects are also identified at different levels (i.e., individual, neighborhood, city and global). Moreover, the proposed methodology creates scenarios that can be illustrated by a map-based approach to enable a better illustration and visualization of benefits. It demonstrates how a map-based approach can assess not only the extent of sustainability and resilience benefits accrued (how much is benefitted), but also their spatial distribution (who is benefitted). The main methodological challenges and issues on developing an integrated sustainability and resilience benefits assessment are identified and discussed

Assessment of adaptation measures against flooding in the city of Dhaka, Bangladesh

Dhaka is one of the world’s largest megacities with a high rate of urbanization. Due to the setting of greater Dhaka in a deltaic plain, it is extremely prone to detrimental flooding. Risks associated with flood are expected to increase in the coming years because of the global climate change impacts as well as the high rate of urbanization the city is facing. The low lying part of Dhaka (Dhaka East) faces most severe risk of flooding. Traditionally, this part has been efficiently storing the excess water caused by excessive rainfall and the canals connected to the rivers gradually drained the water to the rivers. But the alarmingly increasing population of Dhaka is leading towards the encroachment of these water retention areas because of the land scarcity. The natural drainage for the city is not performing well and the area is still unprotected from flooding, which causes major threats to its inhabitants. This situation increases the urgency to effectively adapt to current floods caused by climate variability and to the impacts of future climate changes. The government is planning several adaptive measures to protect the area whereas a systematic framework to analyze and assess them is lacking. The objective of the paper is to develop an integrated framework for the assessment of various (current and potential) adaptation measures aimed at protecting vulnerable areas from flooding. The study firstly assesses current and future risks from flooding in the most sensitive region of the city. Subsequently, the study identifies, analyses and assesses adaptive initiatives and measures to address flood risks in the Eastern fringe area. Adaptation assessment is conducted within the framework of Multi Criteria Analysis methodology which allows both normative judgment and technical expertise in the assessment process. Based on the assessment and analysis, adaptive measures are prioritized to enable more effective action. Such a participatory integrated assessment of adaptation options is a new approach in flood management in least developed countries and in Bangladesh in particular. A framework for prioritization of adaptation measures is lacking in the decision making process in Bangladesh which could immensely assist in informed and structured decisions while developing adaptation strategies

A quantitative central limit theorem for linear statistics of random matrix eigenvalues

It is known that the fluctuations of suitable linear statistics of Haar distributed elements of the compact classical groups satisfy a central limit theorem. We show that if the corresponding test functions are sufficiently smooth, a rate of convergence of order almost $1/n$ can be obtained using a quantitative multivariate CLT for traces of powers that was recently proven using Stein's method of exchangeable pairs.Comment: Title modified; main result stated under slightly weaker conditions; accepted for publication in the Journal of Theoretical Probabilit

Global well-posedness for a nonlocal Gross-Pitaevskii equation with non-zero condition at infinity

We study the Gross-Pitaevskii equation involving a nonlocal interaction potential. Our aim is to give sufficient conditions that cover a variety of nonlocal interactions such that the associated Cauchy problem is globally well-posed with non-zero boundary condition at infinity, in any dimension. We focus on even potentials that are positive definite or positive tempered distributions.Comment: Communications in Partial Differential Equations (2010

Analytical framework to evaluate the level of integration of climate adaptation and mitigation in cities

Low carbon and climate resilient urban development are becoming important objectives to be achieved in order to assure sustainable urban development pathways. Traditionally, cities have treated climate mitigation and adaptation strategies in isolation, without addressing their potential synergies, conflicts or trade-offs. Recent studies have shown that this can lead to inefficiencies in urban planning, conflicting policy objectives and lost opportunities for synergistic actions. However, in the last few years we have observed that cities are increasingly moving towards addressing both mitigation and adaptation in urban planning. Cities need to pay particular attention and understand the rationale of both policy objectives while considering integration of the two policies in urban planning and decision-making. This study presents the development of an analytical framework to evaluate the level of integration of climate mitigation and adaptation in cities’ local climate action plans. We tested this framework in 9 selected major cities, representatives from all continents, which are frontrunners in climate action both in their regions and globally. We applied the framework in order to evaluate the level of mitigation and adaptation integration in cities’ CCAPs and further explore the different types of mitigation – adaptation interrelationships that have been considered. We also devised a scoring system in order to be able to compare and rank the different CCAPs regarding their level of integration of adaptation and mitigation. The paper draws good practices to support cities in developing climate change action plans in an integrated way

\epsilon-regularity for systems involving non-local, antisymmetric operators

We prove an epsilon-regularity theorem for critical and super-critical systems with a non-local antisymmetric operator on the right-hand side. These systems contain as special cases, Euler-Lagrange equations of conformally invariant variational functionals as Rivi\`ere treated them, and also Euler-Lagrange equations of fractional harmonic maps introduced by Da Lio-Rivi\`ere. In particular, the arguments presented here give new and uniform proofs of the regularity results by Rivi\`ere, Rivi\`ere-Struwe, Da-Lio-Rivi\`ere, and also the integrability results by Sharp-Topping and Sharp, not discriminating between the classical local, and the non-local situations

Preferences matter: A constructive approach to incorporating local stakeholders' preferences in the sustainability evaluation of energy technologies

This research paper aims at developing and applying a constructive weighting methodology for the elicitation of local stakeholders' preferences regarding a set of sustainability evaluation criteria during the assessment of low-carbon energy technologies. The overall methodology has been applied and tested for the sustainability evaluation of selected low-carbon energy technologies in Europe from a local stakeholders' perspective. The researchers applied a constructive weighting methodology based on different Multiple Criteria Analysis (MCA) techniques to test the consistency of stakeholders' preferences. The methodology was piloted based on a small-scale European local stakeholders' survey within the framework of Covenant CapaCITY, an Intelligent Energy Europe project that supports the development of Sustainable Energy Action Plans (SEAPs). It became evident that the local stakeholders who participated placed high priorities on aspects such as CO2eq emissions reduction, ecosystem damages reduction, and resilience to climate change during the evaluation of low-carbon energy technologies. Considering the overall energy technologies assessment, wind off-shore, solar PV, hydropower, and wind on-shore achieved the highest scores and better reflected the priorities of local stakeholders considering a large set of multiple sustainability criteria. The high number of criteria led to some inconsistencies of stakeholders' preferences, confirming the need for consistency checks and/or combining different methods of preference elicitation

Energy and emissions modelling in ethiopia’s transport sector

Papers presented virtually at the 41st International Southern African Transport Conference on 10-13 July 2062This paper discusses emissions and energy modelling in Ethiopia’s transport sector as a component of the development of a wider cross-sectoral Long-term Low Emissions Development Strategy (LT-LEDS) for the country. The LT-LEDS is a key requirement of the Paris Agreement 2015 to which Ethiopia is a signatory. It aims to support growth of key economic sectors while ensuring the alignment of developmental goals with climate commitments and environmental sustainability. The transport sector is identified as a key part of this effort given its significant contribution to GHG emissions and climate change globally. The main activities involved in developing the low emissions pathways are the modelling of baseline and mitigation scenarios which capture historic emission and energy trends in the transport sector and estimates future emissions linked with the growth of the sector respectively. A bottom-up modelling technique is employed for the study. This involves collecting and analysing disaggregate transport activity data to provide a fundamental understanding of transport sector energy consumption and how it affects the long-term transitions. The results of the scenario building highlight the road sector as the main contributor to transport sector emissions in the country. This calls for the implementation of strategies and interventions to reduce emissions and guarantee a climate friendly and environmentally sustainable growth