Non-additionality, Overestimation of Supply, and Double Counting in Offset Programs: Insight for the Mexican Carbon Market

Mexico utilizes an emissions trading system as one of its carbon pricing instruments. Mexico’s planning, like that of other countries, includes flexible mechanisms such as offsets. Offsets allow market participants to compensate for their emissions through mitigation projects. Offsetting via participation in the Clean Development Mechanism and Joint Implementation was fundamental to the Kyoto Protocol. In contrast, the Paris Agreement is ambiguous about its use. Other national or regional offset programs, such as the EU, Australia, New Zealand, Japan, or Korea, work within emission trading systems. Subnationally, the California-Quebec program has been in effect since 2014. As Greenhouse Gases (GHGs) are global, offsetting allows market participants to compensate for their emissions through mitigation projects, whether domestically or abroad. Given their global scope, such programs present a wide variability in quality. This chapter presents an overview of offset programs worldwide and argues that non-additionality, overestimated supply, and double counting are their three most pressing quality problems. This analysis sheds light upon the nascent Mexican system and its offset program.

Sustainable Transitions of Urban Projects towards Mitigation and Adaptation Projects for Climate Change: The case of Medellin

The research investigates the relationship between cities and climate change by examining how urban projects shifted to mitigation and adaptation for climate change at an urban scale. The article is based upon two complementary approaches, a multilevel analysis from sustainable transitions theory and a framework of interrelations of urban mitigation and adaptation projects. The methodological design is a case study; we analyzed the case of Medellin that, at the beginning of the 2000's, implemented public transport projects, urban parks, educational and cultural facilities, and risk mitigation projects in the surrounding hills. The main findings are that specific projects at an urban scale are operating as niches or experiments, taking advantage of windows of opportunities, and triggering changes in the urban design routines, framing a new sociotechnical system. It is found that governance, leadership, teams of experts and urban planners are drivers for the transition of urban projects, which were initially designed for social and transport needs, to urban mitigation projects for climate change. At the same time, urban mitigation projects such as the Metropolitan Green Belt are transiting to adaptation projects for climate change. The conclusion for this case study is that while most urban projects retain their traditional role, a new generation of projects with mitigation and adaptation features is emerging in the context of climate change. This article contributes to expanding the empirical analysis of the literature on the theory of sustainable transitions specifically related to cities and urban projects. The theoretical framework of urban projects and their linkages with climate change are enriched. The conceptual framework of the analysis is replicable and useful for practitioners in the field of urban design and researchers interested in comparisons to identify patterns or typologies. In addition, the article contributes to sensitize actors involved in public urban design policies in their roles as managers of transitions.

Development, Responsibility, and the Creation of Urban Hazard Risk

Scholarly attention has recently shifted to the creation and redevelopment of urban hazardscapes. This body of work demonstrates how housing is deployed in close proximity to hazards, and how the attendant risks have been communicated—or not—to potential residents. Utilizing the case of Calgary, Alberta, this article uses interview data collected from flood-impacted residents, and looks at their perceptions of development and risk creation. The analyses focus on how people attribute responsibility for development in flood-prone areas, and their views on future development in these areas. Results reveal that many residents argued for more government regulations preventing new development in floodplains. Moreover, they viewed developers as narrow-interested capitalists who fail to protect public safety and work to conceal risk from the public. Others wished to see large structural mitigation projects—dams, levees, or floodwalls—or insisted that homebuyers be informed of flood risk prior to purchase. The article concludes by addressing the implications for scholarly work in urban sociology, environmental sociology, and the sociology of disaster—all of which grapple with tensions between place-making and risk creation.

Flood Mitigation in Mediterranean Coastal Regions: Problems, Solutions, and Stakeholder Involvement

Flooding affects Mediterranean coastal areas, with negative impacts on regional populations and ecosystems. This paper reviews the causes and consequences of coastal flooding in European Mediterranean countries, common and advanced solutions implemented to mitigate flood risk, and the importance of stakeholder involvement in developing these solutions. Climate change, intensive urbanization, tourism, deforestation, wildfires, and erosion are the main causes of coastal flooding, leading to social and economic losses, degradation of ecosystems, and water and soil contamination due to saltwater intrusion. Various measures for mitigating urban coastal flooding have been implemented, including coastal barriers, infrastructural drainage systems, wetlands, and mobile dams. Development and implementation of such solutions should be performed in close collaboration with stakeholders, but their current engagement at the coordination and/or decision-making level does not allow full integration of local knowledge in flood mitigation projects. Various processes are used to engage stakeholders in coastal flood mitigation, but participatory approaches are required to integrate their perspectives into performance analysis of potential solutions. Such approaches would allow a balance to be reached between nature conservation, market forces, stakeholder needs, and decision-makers’ priorities, resulting in development of innovative and sustainable mitigation solutions to enhance urban resilience to coastal flooding.

Comparing poroelastostatics and poroelastodynamics: Numerics, solvers and algorithms

Understanding the causality between the events leading upto and post fault slip and the earthquake recording is important for seismic design and monitoring of underground structures, bridges and reinforced concrete buildings as well as climate mitigation projects like carbon sequestration and energy technologies like enhanced geothermal systems or oilfield wastewater disposal. While the events leading upto fault slip are typically governed by poroelastostatics, the events post fault slip can easily transition into poroelastodynamics territory due to runaway fault slip velocities. There are marked differences in the numerics of poroelastostatics and poroelastodynamics, and a simple switch from one algorithm to another based on fault slip velocities is not trivial. In fact, an understanding of expected fault slip velocities is critical apriori, as an algorithm which can seamlessly transition from time marching in poroelastostatics realm to poroelastodynamics realm and vice-versa is extremely difficult to achieve. We present the numerics of both physics and point out the differences between the two in this work.

Willingness to Pay for Crowdfunding Local Agricultural Climate Solutions

The recent rise in climate concern among citizens worldwide is coinciding with a rising interest in agricultural climate solutions. The future scaling-up of these solutions, however, requires more knowledge about the mitigation potential, costs and financing options, including crowdfunding (CF). Our objective is to explore the driving factors behind the public’s willingness to pay for crowdfunded climate mitigation projects at the farm level. In this study, four mitigation options from the perspective of farmers were identified: solar panels on the barn roof, biogas from animal manure, drag hoses for improved manure dispersal, and the addition of biochar to soils. The study investigates the optimal characteristics of crowdfunding campaigns to finance such mitigation measures. The most influential factors on the respondents’ WTP is neither climate concern nor proximity, but instead the knowledge regarding CF, combined with how comprehensible and salient the suggested measure is. The main implications are that future projects that aim to achieve broad participation in CF campaigns need to communicate well, to improve both public knowledge of the funding mechanism (CF) itself and the comprehensibility and salience of the agricultural measure.

Organic carbon in soils with different systems of use in Tacarimena Yopal, Colombia

Soil is an important carbon reservoir as it can store twice the amount that atmosphere does and three times the biomass, which makes it a key component for climate change (CC) mitigation projects. It is important to know the potential of soil organic carbon storage (SOC) in the main uses of the soli and their expected dynamics due to potential use changes. SOCS is estimated in 7 of the dominant land use systems in the area of the study, with 5 replicas as follows: 1) banana with shade (SAF+banana); 2) cocoa with shade (Ca+S); 3) citrus (C); 4) low silvopastoral system (SSPB); 5) high silvopastoral system (SSPA); 6) gallery forests (BG); and 7) bush forest (MM). SOC concentration was analyzed in samples composed of 25 soil sub-samples per plot, and the DA was estimated with the cylinder method in a simple per plot. All land uses studied can mitigate CC when storing SOC. BG was the system that showed the highest carbon storage. On the other hand, SAF+banana stored the least SOC (72,7 vs 33,4Mg/ha, respectively). Changes in land use can cause CO2 emissions or an addition in carbon fixation. Changes in land use that increase SOC allow CC mitigation, which makes them feasible for funding, thus allowing an improvement in the livelihood of local producers.