Water-food-energy nexus in global cities: solving urban challenging interdependencies together

Hachaichi, Mohamed; Egieya, Jafaru M.

doi:10.21203/rs.3.rs-1956052/v1

Cited by 4 publications

(1 citation statement)

References 41 publications

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“…This aligns with the guidance outlined in successive publications of the IPCC Reports on "Mitigation of Climate Change" [1]. Nonetheless, the effectiveness of climate mitigation actions is progressively acknowledged within the context of cities [2][3][4]. Following the COP21 in Paris, cities have emerged as a central focal point for policymakers aiming to formulate climate mitigation actions [5,6].…”

Section: Introductionsupporting

confidence: 54%

No City Left Behind: Building Climate Policy Bridges between the North and South

Hachaichi

2023

Meteorology

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Cities are progressively heightening their climate aspirations to curtail urban carbon emissions and establish a future where economies and communities can flourish within the Earth’s ecological limits. Consequently, numerous climate initiatives are being launched to control urban carbon emissions, targeting various sectors, including transport, residential, agricultural, and energy. However, recent scientific literature underscores the disproportionate distribution of climate policies. While cities in the Global North have witnessed several initiatives to combat climate change, cities in the Global South remain uncovered and highly vulnerable to climate hazards. To address this disparity, we employed the Balanced Iterative Reducing and Clustering using the Hierarchies (BRICH) algorithm to cluster cities from diverse geographical areas that exhibit comparable socioeconomic profiles. This clustering strives to foster enhanced cooperation and collaboration among cities globally, with the goal of addressing climate change in a comprehensive manner. In summary, we identified similarities, patterns, and clusters among peer cities, enabling mutual and generalizable learning among worldwide peer-cities regarding urban climate policy exchange. This exchange occurs through three approaches: (i) inner-mutual learning, (ii) cross-mutual learning, and (iii) outer-mutual learning. Our findings mark a pivotal stride towards attaining worldwide climate objectives through a shared responsibility approach. Furthermore, they provide preliminary insights into the implementation of “urban climate policy exchange” among peer cities on a global scale.

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Section: Introductionsupporting

confidence: 54%

No City Left Behind: Building Climate Policy Bridges between the North and South

Hachaichi

2023

Meteorology

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Integrated Water Resources Management in Cities in the World: Global Challenges

Grison

Koop

Eisenreich

et al. 2023

Water Resour Manage

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Water scarcity and accessibility remain persistently amongst the most prominent global challenges. Although there is a wide agreement among international organizations that Integrated Water Resources Management (IWRM) and water governance are key to overcome water-related challenges, global assessments of the progress made by cities is lacking. This paper for the first time analyses the challenges of water, wastewater, municipal solid waste and climate change in cities. We used empirical studies (125 cities) based on the City Blueprint Approach and developed a statistical estimation model to estimate IWRM performances of another 75 cities. These 200 cities in total represent more than 95% of the global urban population. This comprehensive global picture enables us to evaluate the existing gaps in achieving water-related Sustainable Development Goals (SDGs), in particular SDG 6 (clean water and sanitation) and SDG 11 (sustainable cities and communities). The best performing cities were Amsterdam and Singapore. Unfortunately, most cities do not yet manage their water resources wisely and are far from achieving the SDGs. For instance, targets regarding drinking water supply are still a challenge for many cities in Africa and Asia and challenges regarding sanitation are high in cities in Africa, Asia and Latin America. The same holds for solid waste management, climate adaptation, and people living in informal settlements. In another paper we will address the solution pathways to these global challenges.

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