This article is part of our new Opinion section, a format for argument-driven essays on critical questions shaping our field.

The modern sustainability project is built on the promise that evolving technologies can reconcile urban and economic growth with ecological responsibility. By the metrics developed by the built environment professions and the policies adopted by governments, progress is tangible and accelerating: buildings consume less energy per square foot than they did a generation ago, vehicles emit fewer pollutants per mile, and urban infrastructure is more integrated and measurably cleaner in many cities. And yet total resource consumption continues to rise. Sustainability, as currently practiced across the built environment professions, has become a strategy for optimizing consumption rather than reducing it. Until the profession is willing to question the scale and structure of demand rather than the efficiency with which that demand is met, its most celebrated achievements will continue to fall short of the problem they claim to address.

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The United Nations' International Mother Earth Day, observed annually on April 22, aims to "promote harmony with nature and the Earth." In light of the urgency posed by climate change, it seeks to raise awareness of the challenges of preserving all forms of life supported by the planet. It is a call to the global community to safeguard biodiversity while striving to balance economic, social, and ecological systems. Crimes against biodiversity include large-scale practices such as deforestation, land-use change, intensified agriculture, livestock production, and illegal wildlife trade, all considered by the UN to be accelerating factors in the destruction of the planet.

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How do nature and landscape dialogue within spaces designed for children? How are architecture and urban design capable of shaping natural atmospheres that integrate practices of play, participation, and exploration? From participatory projects that involve children in the design process to built environments that incorporate furniture adapted to their needs, the conception of spaces for childhood entails the creation of places for encounter, learning, and coexistence. At times, these spaces are able to strengthen the relationships between interiors and exteriors, connecting their users with nature and the surrounding environment. Depending on their cultures, customs, and histories of attachment to place, several contemporary projects deploy tools and strategies that integrate architecture, nature, and pedagogy to form broad experiences of learning, play, and discovery.

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Urban playgrounds are evolving from simple swing sets and slides into dynamic, multi-faceted urban landscapes. These new designs are more than just places to play; they are thoughtfully integrated spaces that address urban challenges, promote community, and inspire creativity. A key trend is the intentional use of color and pattern. Designers are utilizing vibrant color zones to segment different functional areas, creating a visually dynamic experience that contrasts with natural surroundings. This approach can also be used to establish a cohesive urban identity, with thoughtful color palettes that complement the existing cityscape.

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When a brief to design a new office space asks for something fresh, energetic, and modern – a space where employees enjoy being and, crucially, enjoy working in, which helps them to focus on individual tasks but also to relax, collaborate, and create – there are few better places to begin than a color wheel. As the world of work and the varied environments it takes place in become less formal and restricted in their design, architects, designers, and, more importantly, their clients are handing the boring, monotone office its redundancy papers and looking outside the establishment at more expressive colorful options.

While blue’s ability to improve concentration, stimulate thinking, and provide mental clarity helps to increase productivity, the human body needs regular periods of rest and relaxation, too. For this, warm colors like yellows provide relaxation through warmth and comfort – perfect for break-out areas. Meanwhile, reds and oranges promote creativity and expression, meaning they can be useful for areas designated for social collaboration, whilst green encourages a calmer, more balanced approach, for a different kind of meeting.

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Environmental neuroscience is an emerging field devoted to studying the impact of social and physical environments on brain processes and behaviour. From the various opportunities for social interaction to noise levels and access to green spaces, the characteristics of the urban environment have important implications for neural mechanisms and brain functioning, thus influencing our physical state. The field paints a different image of how cities impact our health and well-being, thus providing a new, scientific layer of understanding that could help architects, urban planners, and decision-makers create more equitable urban environments.

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MVRDV and GRAS announced the completion of five of the seven buildings of Project Gomila in Palma de Mallorca, Spain. The residential complex was originally comprised of four existing buildings, adding three new ones for a total of 60 new dwellings and new commercial spaces. The project aligns with revamping the historic neighborhood "El Terreno" as a vibrant and sustainable residential site, home of bohemian nightclubs that hosted iconic musicians such as Jimi Hendrix, Ray Charles, and Tom Jones.

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Harvard University Graduate School of Design (Harvard GSD) has announced Marina Otero as the winner of the 2022 Wheelwright Prize. The 100,000 USD grant funds two years of research and travel to support contemporary architecture's investigative approaches, with an emphasis on globally minded research. The winning proposal, “Future Storage: Architectures to Host the Metaverse”, examines a new architecture paradigm for storing digital data. The project looks at how reimagining digital infrastructures could provide answers to the unprecedented demands facing the world today. The field research, data collection, and prototype development will result in an open-source manual for data center architecture design containing examples of ecological, circular, and egalitarian data storage models.

The year 2021 has been a turbulent one –coronavirus rages on, and the design and construction industries have been forced to keep adapting two years into a global pandemic. As virtual methods of working and communicating continue to be tweaked and honed, a plethora of virtual events has meant that architectural discourse outside the western canon and Eurocentric gaze, in a small way, has been able to claim space front and center in the global architectural conversation.

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It is difficult to start any retrospective text on 2020 without sounding too cliché. While facing an invisible enemy that changed everyone’s lives, this past year has taught us that humanity is more fragile than we ever imagined. At Archdaily, it’s our job to synthesize how the buildings and the world we live in will be impacted by COVID-19 not only in the short term but in the distant future as well. Has our perception of the built environment changed this year? And has our relationship with the tectonics of buildings changed with all of the obstacles we’ve faced along the way?

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On behalf of the entire ArchDaily team, we would like to thank you for your continued support and for making 2020 our best year so far! We are now reaching more architects around the world and inspiring them in the creation of better built environments. With more than 5500 different projects published during the year, our curators are excited to share this collection of the 100 most visited projects of 2020. This selection represents the best content created and shared by the ArchDaily community over the past 11 months.