As the world witnesses an unprecedented exodus from rural to urban areas, cities face a monumental challenge: how to accommodate a constantly growing population? This phenomenon, characterized by rapid population growth and increasing density, puts pressure on resources, infrastructure, and urban services. As significant problems demand even larger solutions, it becomes necessary, more than ever, to rethink the tools at our disposal. In this challenging context, the rise of emerging technologies such as the Internet of Things (IoT), data analytics, and artificial intelligence (AI) presents itself as a light at the end of the tunnel. These technologies, initially conceived to simplify everyday tasks and facilitate communication, are potential instruments that enable an effective response to contemporary urban challenges.

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The Spanish city of Barcelona, one of Europe's top tourist destinations, has announced a plan to ban apartment rentals to tourists by November 2028. The move, announced by Mayor Jaume Collboni, aims to alleviate the long-standing housing crisis, lower prices for residents, improve livability, and increase the city’s affordable housing stock. Over the past 10 years, the rise in short-term rentals has driven rents up by 68%, and the cost of buying a house by 38%, contributing significantly to a cost-of-living crisis.

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Joining Copenhagen and Rio de Janeiro, Barcelona has been named the UIA's 2026 World Capital of Architecture by UNESCO. This title recognizes the city's commitment to promoting the values of architecture, urban planning, and sustainability. Outshining Beijing as the other contender for the 2026 title, Barcelona won the bid with its proposal titled "One today, one tomorrow," with a plan to host a series of transformative events across all its districts and become a research laboratory analyzing the capacity of architecture to transform reality over time.

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Los Angeles officials have voted on a motion to implement the first Park Block, a pilot project that creates a car-free grid of city streets to open up public space for pedestrians and cyclists, as reported by NBC Los Angeles. The plan takes inspiration from Barcelona’s Superblock program, which creates groups of nine blocks in the district of Eixample and restricts the traffic to the outside streets, freeing up the rest of the streets for pedestrian and local transit only. Implemented in 2016, the plan has led to reduced levels of air pollution, urban noise, and traffic fatalities. A similar program is now planned for Los Angeles, United States.