As cities around the world brace for extreme temperatures and waves of unrelenting heat, urban greening is one of the best solutions for leaders to combat this reality. The benefits of planting trees for physical health, mental well-being, and thermal relief are well documented, and a mature canopy can transform a space by several degrees on a hot day. Trees cool the air through evapotranspiration, filter pollutants and absorb stormwater, and enhance biodiversity in urban spaces.
The built environment has historically served humans as a mechanism of environmental control. Through our intellectual capacities and ability to organize, we have used buildings to actively influence and terraform the immediate context in which they are inserted, often treating geography, water, and ecosystems as resources to be extracted and managed. However, more and more, architecture is transitioning from exploiting physical and biological matter to actively collaborating with it. This shift demands that architects explore how buildings and their materials grow, transform, decay, and persist beyond human timelines. This thinking also serves as a starting point for the profession to reflect on how it influences the natural world, as well as the non-human species around it, creating networks and connections between humans, buildings, living organisms, and natural environments.
Buildner has announced the results of its Re-Form: New Life for Old Spaces, second edition, an international ideas competition examining the adaptive reuse of small-scale existing buildings. The competition invited architects and designers to propose transformations of used, abandoned, or overlooked structures with an approximate footprint of 250 square meters, located anywhere in the world. With no fixed site or program, participants were encouraged to explore alternatives to demolition and new construction through reuse strategies grounded in contemporary social and environmental concerns.
Across different climates and building cultures, many contemporary projects are working with local ways of building in new ways. Earth walls, bamboo structures, shaded thresholds, and collective construction processes are being reconsidered not as references, but as tools for the conditions architecture is facing now and will continue to face.
In these projects, vernacular knowledge appears through practical decisions: how to cool a building without machines, how to build with what is nearby, how to make a structure easier to repair, and how to keep construction knowledge within the community that will use it. The conditions making this knowledge necessary are not coming. They are already here.
Foster + Partners, in collaboration with Dar Al-Handasah, has revealed the master plan for Al Najd Agricultural City in Dhofar, southern Oman. Covering approximately 54 million square feet, the development is conceived as a self-sustaining agricultural and urban settlement designed to respond to the region's environmental conditions and agricultural landscape. Commissioned by the Ministry of Housing and Urban Planning and the Ministry of Agriculture, Fisheries, and Water Resources, the project forms part of the objectives outlined in Oman Vision 2040, which seeks to strengthen food security, diversify the national economy, and support sustainable development initiatives.
ReGreeneration is a Horizon Europe-awarded project working across nine cities to advance urban regeneration through nature-based solutions, participatory governance, and integrated approaches to climate resilience and social equity. The nine cities in the project portfolio span a range of urban typologies, scales, and planning traditions, forming a living laboratory for rethinking sustainable urban transformation in practice. Each city brings distinct challenges and ambitions to the collaboration, and this series of articles explores what each city is doing and what the broader design community can learn from it.
For centuries, chickens have lived alongside people in settlements of every scale, from rural farms and village compounds to dense urban neighborhoods. Across much of the world, keeping a flock has been part of everyday life, providing eggs and meat to residents, or pest control for the surrounding agricultural land. The structures built to house chickens varied according to local materials, climate, and cultural practices, yet they shared a common purpose: to create a space where chickens and humans could coexist. The chicken coop is not a new architectural typology nor a contemporary response to urban living. Instead, it is a form that has continually adapted to changing social, environmental, and spatial conditions.
Contemporary architecture has learned to celebrate living matter. Mycelium panels, algae systems, living walls, life is now welcomed into buildings, framed as innovation. Yet the same discipline that celebrates these organisms treats mold as contamination. Both are biological. Both respond to moisture, temperature, and material conditions. The difference is not scientific. It is about which forms of life architecture is willing to accept, and which it prefers to remove.
Mold is not limited to abandoned buildings or poorly maintained interiors. It appears in homes, schools, offices, historic structures, and new construction, across different climates and contexts. This makes it harder to ignore as a minor or isolated problem. If mold keeps returning, what is it telling us about the environments buildings create?
For much of the twentieth century, architectural culture was shaped by the pursuit of lightness. Steel structures and curtain walls reduced the building envelope to a thin layer separating interior from exterior, while façades became smooth, continuous surfaces where windows were cut as precise openings within an abstract plane. But for centuries, buildings were conceived as bodies of mass; walls possessed depth, windows were recessed within thick masonry, and space was often experienced as something carved from the solidity of construction. In recent years, several contemporary projects appear to revisit this older spatial logic, reintroducing thickness as an architectural condition through deep openings, monolithic volumes, and heavy envelopes.
This shift does not imply a rejection of modern construction technologies, nor does it represent a nostalgic return to historical forms. Instead, it reflects a renewed interest in the fundamental relationship between material, mass, and void. By reintroducing thickness into the architectural vocabulary, these buildings reconnect contemporary practice with long-standing traditions in which space was inseparable from the weight and depth of construction.
As Europe experiences one of its earliest and most intense heatwaves in recent years, World Environment Day 2026 arrives amid renewed discussions about climate adaptation, urban resilience, and the capacity of cities to respond to increasingly extreme temperatures. Across Portugal, France, Italy, Spain, Germany, Switzerland, Ireland, and the United Kingdom, temperatures have surged well above seasonal averages, prompting heat alerts, school closures, emergency planning measures, and growing concerns about the performance of buildings and public infrastructure under prolonged heat stress. The convergence of these highlights a reality that is becoming increasingly worldwide: climate change is no longer solely an environmental concern but an issue that is fundamentally reshaping the spaces where people live, work, and gather.
Environmental justice confronts a simple but uncomfortable truth: the benefits and burdens of the environment are not shared equally. Marginalized communities bear a disproportionate share of polluted air, unsafe water, toxic land uses, extreme heat, and the accelerating risks of climate change in cities around the world. These are the consequential products of decades of policy decisions, investment patterns, exclusionary planning practices, and planning choices that have consistently favored certain communities over others.
In cities and landscapes alike, these injustices are written into the physical fabric of places, even revealing extreme differences in environmental conditions between neighborhoods and districts. Dense neighborhoods with little tree canopy, for example, absorb and hold heat, exposing residents to higher rates of heat-related illness. Highways, industrial corridors, ports, and waste facilities cluster near low-income neighborhoods and communities of color, shaping conditions of health, air and soil quality, and long-term safety.
Before a building can be inhabited, many other things need to happen. Water has to arrive, energy has to be generated, food has to be grown or transported, and waste has to go somewhere. These processes are usually treated as something outside architecture, even though they shape the most basic conditions of everyday life.
This is why the idea of self-sufficient communities is more complex than it first appears. It can suggest a place that provides more of what it needs: energy, water, food, shelter, and waste management. Yet, in many Latin American contexts, autonomy is not a complete separation from the world. It is a way of bringing the systems of daily life closer to the people who use, maintain, and care for them.
In Latin America, the ground is rarely just a surface to build on. It can be a river edge, a steep slope, a humid forest floor, a floodable landscape, or a territory under ecological pressure, and in many cases, it carries a history of communities that already knew how to respond to it, building on stilts, on platforms, over water, long before contemporary architecture asked the same questions.
These projects continue that conversation. They engage with conditions that move, absorb, erode, and grow, rather than treating the ground as something to level or control. Elevation allows architecture to adapt without fully taking over: water can pass below, vegetation can remain, and slopes can keep their original condition. In each case, the decision to rise is tied to something specific: water, humidity, topography, vegetation, or ecological recovery, and the knowledge of how to build within it and not against it.
The Barbican Centre has announced In Other Worlds, a major immersive exhibition by speculative architect, filmmaker, and artist Liam Young, opening from May 21 through September 6, 2026. Occupying three distinct locations within the Barbican complex, the Silk Street Entrance, The Curve gallery, and Car Park 5, the exhibition will transform the Brutalist cultural landmark into a sequence of cinematic environments examining architecture, infrastructure, climate futures, and planetary urbanism. Developed in collaboration with writers, scientists, filmmakers, musicians, and performers, the project brings together large-scale projections, LED installations, sound environments, graphic narratives, costumes, and speculative artifacts to explore how fiction and spatial storytelling can shape conversations around environmental and technological change.
Architecture is often understood as a matter of enclosure. Walls define space, separating interior from exterior and establishing clear limits. Yet across many projects in Latin America, this distinction becomes less precise. Rather than operating as closed objects, buildings often remain open, allowing air, light, and movement to pass through them.
This condition is tied to more than form. Across the region, architecture has long responded to climates marked by heat, humidity, strong solar exposure, and seasonal rainfall, as well as to building cultures shaped by adaptation, collective labor, and direct engagement with the environment. In these contexts, fully sealed interiors are not always the most effective response. Space is often organized through shade, ventilation, and intermediate zones that regulate rather than isolate.
Architecture is traditionally chronicled through the persistence of the solid. We define the discipline by the weight of the lintel, the mass of the pier, and the resistance of the wall. Even when lightness is invoked, it is usually understood as a subtractive act, the thinning of a section or the precarious reduction of a load. Yet there is a parallel history, less visible and harder to isolate, in which the primary material of construction is not what occupies space, but what moves through it.
To treat air as a medium is to move past the binary of the envelope. The boundary between the interior and the world ceases to be a line of absolute separation and becomes, instead, a site of filtration and pressure. We begin to see the building as a thermal valve, a series of gradients where moisture, velocity, and heat are not merely background "conditions" to be mitigated by mechanical systems, but are the very substances being shaped.
The courtyard is often remembered as a figure from the past, an inward-looking space of nostalgia, culture, and domestic ritual. But this framing misses its primary role. Before it was symbolic, the courtyard was operational. It organized air, moderated light, and absorbed heat. It did not decorate architecture; it made it habitable. In contemporary housing, these functions are normally delegated to mechanical systems, applied after form is fixed. In courtyard houses, they are resolved spatially, before a wall is even built.
What appears as a recurring typology across regions is, in fact, a set of highly specific responses to climate. The courtyard in Egypt does not behave like the courtyard in Morocco, nor like the courtyard in India. Each is calibrated to a different environmental problem, using the same spatial device. To read them as a single type is to flatten their intelligence. To compare them is to understand how climate can be embedded directly into form.
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.
