This comparative study analyzes the impact of the COVID-19 pandemic on motorized mobility in eight large cities of five Latin American countries. Public institutions and private organizations have made public data available for a better understanding of the contagion process of the pandemic, its impact, and the effectiveness of the implemented health control measures. In this research, data from the IDB Invest Dashboard were used for traffic congestion as well as data from the Moovit© public transport platform. For the daily cases of COVID-19 contagion, those published by Johns Hopkins Hospital University were used. The analysis period corresponds from 9 March to 30 September 2020, approximately seven months. For each city, a descriptive statistical analysis of the loss and subsequent recovery of motorized mobility was carried out, evaluated in terms of traffic congestion and urban transport through the corresponding regression models. The recovery of traffic congestion occurs earlier and faster than that of urban transport since the latter depends on the control measures imposed in each city. Public transportation does not appear to have been a determining factor in the spread of the pandemic in Latin American cities.

This article aims to review the perspective of sustainability adoption in universities through two dimensions: firstly, from the educational and research process, and second, from their global positioning in terms of the performance of their university campus. For this purpose, a bibliometric analysis was carried out, referring to publications dating from 2006 to 2020, using the terms “Sustainability, green universities and curricular sustainability” as search keywords. In addition, an analysis of eight global university rankings was made, gathering information from their official websites on their evaluation fields, indicators, and volume of Ibero–American universities cataloged. The result is that, since 2007, the number of publications on this topic has increased, showing that the participation of Latin American in publications is very low (3.69%). Furthermore, only 12% of Latin American universities are included in world rankings. Sustainability has hardly been integrated into university academic programs; likewise, it is observed that the traditional world ranking of universities mainly take into account factors related to teaching and research, without considering criteria related to sustainability. Moreover, it is essential to develop policies that encourage universities to develop sustainability strategies in their academic and institutional processes in general, as well as in the global university evaluation systems, in order to value sustainability adequately in both in academics, research and institutional performance.

Calculating the energy consumption and carbon footprint is essential for maritime industry sustainability, driving informed decisions and innovation. This study assesses the energy consumption and carbon footprint of the Port of Sines in Portugal to support its decarbonization and energy transition, based on the scopes defined by the Greenhouse Gas Protocol. The proposed calculation model is detailed using different data sources for the 2018–2022 period. For each terminal, the monthly and annual energy consumption and carbon footprint are calculated, considering land and maritime activities into the port jurisdiction area. The results show that more than 99% of the port’s total energy consumption and carbon footprint are due to the operations and activities of the different terminals. On average, the Port of Sines consumes 422,378.45 MWh/year and has a carbon footprint of 224.63185 tCO₂eq/year. The analysis reveals a non-linear relationship between energy and carbon footprint, due to the different port activities, emphasizing the need for tailored decarbonization strategies for each terminal.

Introducción/objetivo: las emisiones de gases de efecto invernadero (GEI) de origen natural han aumentado por las acciones antropogénicas, y amenazan al planeta con un desequilibrio ambiental. Los embalses para almacenar agua, que después se utiliza para mover las turbinas de centrales hidroeléctricas, acumulan sedimentos generando GEI. En este trabajo se analizan los métodos empleados para estimar las emisiones de GEI en embalses, clasificando las publicaciones científicas encontradas en los motores de búsqueda de ScienceDirect y Google Scholar. Metodología: el método analítico utiliza una expresión booleana para recopilar información en los motores de búsqueda indicados y extraer la bibliografía relevante, considerando factores como la temperatura del agua, la ubicación geográfica, el tipo y la superficie del embalse, el tipo de gas y la tecnología, lo que atribuye un valor de pertinencia a cada característica para elaborar una matriz de resultados. Resultados: los resultados muestran que más del 50 % se basan en estimaciones de GEI y el resto en mediciones directas en los embalses. Además, la contribución de la inteligencia artificial como técnica de estimación es menor al 6 %. Conclusiones: finalmente, las regiones mundiales donde se realizan los estudios están distribuidas proporcionalmente y el análisis de literatura científica indica versatilidad en los métodos de estimación de GEI en embalses hidroeléctricos.

El presente trabajo tiene como propósito revelar los principios que, desde la transición energética, deben desarrollarse en Iberoamérica para garantizar el transporte urbano sostenible. En el mismo se encuentran incluidos los principios de movilidad presentados en diversos proyectos y acuerdos Europeos, con miras a disminuir los efectos del cambio climático producto de los vehículos de combustión. La priorización de estos principios en función de la consulta a expertos realizada para la implementación en la región. Se priorizan de tres (3) grupos de principios que permitirán el desarrollo transporte urbano sostenible hacia la anhelada transición energética.