Barcelona's Uneven Battle Against Rising Temperatures
Barcelona, a prominent Mediterranean city, is experiencing increasingly severe heatwaves, with a record-breaking temperature of 40.7°C (105°F) reported on July 8. Projections from a study published in Nature Medicine indicate that Barcelona could face over 246,000 heat-related deaths between 2015 and 2099 under a worst-case scenario, more than any other European city. This vulnerability is primarily attributed to its geographical location and high urban density, which contribute to the 'urban heat island' effect—a phenomenon where built-up areas, limited green spaces, and extensive asphalt trap heat, leading to elevated temperatures.
However, the impact of these extreme temperatures is not uniformly distributed across the city. El Raval, situated in Barcelona's old town, has been identified as the most 'heat-vulnerable' neighborhood, particularly during nighttime hours. This designation comes from the Climate Vulnerability Index (IVAC), a tool developed in 2022 to pinpoint areas most susceptible to climate change impacts. Elena Domene, a coordinator and co-author of the index, noted the increasing frequency of heatwave episodes as a driving factor for its creation, emphasizing the need to understand where the population would suffer most.
El Raval's Unique Vulnerabilities
El Raval faces a confluence of factors that amplify its heat vulnerability. It is among Barcelona's 15 most densely populated neighborhoods, contributing significantly to the urban heat island effect. Economically, it records the city's second-lowest median annual income at 15,050 euros, according to the Spanish National Statistics Institute, which often correlates with limited access to cooling resources. Furthermore, data from the Public Health Agency of Catalonia reveals that El Raval has one of the lowest proportions of green space in the city, depriving residents of natural cooling elements like shade from trees.
Indoor conditions offer little respite. Research from the Architecture, Energy and Environment Research Group at the Polytechnic University of Catalonia (UPC) indicates that a substantial number of homes in El Raval lack adequate thermal insulation and cross-ventilation. This architectural deficiency traps heat, making interior spaces increasingly stifling as external temperatures rise.
The neighborhood is also a significant hub for migrant communities, with 67 percent of its residents born abroad, primarily from Pakistan, the Philippines, and India. This demographic makes El Raval home to the second-highest proportion of foreign-born residents in Barcelona, as per city council data. Many of these residents, often living in overcrowded and poorly insulated housing, find themselves particularly exposed to the dangers of extreme heat.
Coping Mechanisms and Community Initiatives
In response to these challenging conditions, residents and community organizations in El Raval have developed various coping strategies. The Cultural, Educational and Social Association of Pakistani Women (ACESOP), located on one of El Raval's narrow streets, provides a crucial haven from the heat. Here, migrant women gather weekly, sharing meals and support in a space equipped with fans. Huma Jamshed Bashir, ACESOP's founder, explains that during intense heat, many community members travel up to 20 minutes to air-conditioned shopping centers or the beach to escape their hot homes, often staying until they fall asleep.
For those unable to travel far, the Rambla del Raval, one of the neighborhood's few tree-lined areas, offers a modest alternative. The severity of nighttime heat is particularly concerning; by July 20, Barcelona had already experienced 25 'tropical nights' (lows between 20-24.9°C) and 25 'torrid nights' (lows between 25-29.9°C), nearing the total extreme heat nights recorded for the entirety of 2025.
Reena Mazhar, a recent arrival from Lahore, Pakistan, exemplifies the challenges faced by many. Sharing a single room with her husband and four others in a El Raval flat, without even a fan, she relies on frequent showers or leaving the house to find cooler air. Similarly, 16-year-old Adam Halui, who experiences nosebleeds when temperatures spike, seeks refuge at public fountains or air-conditioned 'climate shelters' like the Josep Trueta municipal center for elderly people.
Limitations of Public Shelters and Urban Planning
Barcelona operates approximately 500 climate shelters, including libraries, museums, and parks, with 15 located in El Raval. While these are open to all, their effectiveness is limited. Blanca Arellano Ramos, an architect and professor at UPC, co-authored a 2023 study on the accessibility of these shelters for individuals over 65, a highly vulnerable group. Her findings revealed that only 15 percent of the elderly population could access a shelter within a 10-minute walk at night, as many facilities close after dark. Additionally, some designated shelters, such as schoolyards, are inaccessible during summer months. Ramos emphasizes that the quality of these shelters is crucial, requiring comfortable seating, access to water, and washing facilities.
Margarita Medina, a 70-year-old lifelong resident of El Raval, illustrates the personal impact of the heat. Living alone with fibromyalgia and a lung condition, she finds her home's air conditioning exacerbates her health issues, forcing her to seek comfort elsewhere. A study by the Barcelona Urban Research Institute (IDRA) highlights the particular risk to older, low-income women living alone in poorly insulated housing during heatwaves.
Urban design experts like Ramos advocate for the 'renaturalization of the city' through increased green spaces. However, this approach presents challenges, including the need for substantial water resources and sufficient space for tree growth. Barcelona City Council aims to integrate warm-climate trees, targeting 36 percent of trees in the Ciutat Vella district (which includes El Raval) to be of this variety. Yet, Pere de Mas, the council's urban trees coordinator, notes the economic and logistical hurdles, as well as the difficulty of these species thriving amidst erratic winter cold snaps and the limited availability of warm-climate trees from European nurseries.
The Agora Juan Andres Benitez: A Community-Led Oasis Under Threat
Amidst these broader urban planning challenges, a critical community-led initiative in El Raval faces an uncertain future. The Agora Juan Andres Benitez, a self-managed 'green area' built and maintained by residents, offers a vital oasis of relief. Established in 2014, citizens transformed a neglected plot of land into a vibrant community space, named in memory of a man who died following an incident with police nearby. This 'free space' is adorned with lush plants that cool the environment, purify the air, and foster biodiversity.
Beyond its ecological benefits, the Agora serves as a crucial social hub. It provides an estimated 16,000 free or low-cost meals annually, operates as an informal care network, hosts educational workshops, and offers health information. It has become a safe haven for some of El Raval's most marginalized residents, including undocumented migrants, homeless individuals, sex workers, and low-income families. However, this vital community resource is now under threat, with a court-ordered eviction date set for October 8.
Margarita Hernandez, an El Raval resident and Agora member, stresses the importance of such spaces for fostering social cohesion. Isa Fernandez, another user, expresses deep concern about its potential loss: "They don't understand why we insist the Agora has to continue. They don't realise what it means, how it affects the whole neighbourhood." For many, the Agora represents more than just a cool spot; it is a place of welcome and refuge, offering an alternative to the intense heat of the streets and overcrowded homes.
