Biosphere X: A Radical Vision of Sustainable Architecture Preserving Earth’s Ecosystems

In an era defined by ecological crisis, sustainable architecture has emerged as one of the most critical disciplines shaping the future of our planet. Biosphere X, designed by Yibo Gao, Lu Xu, and Wang Xinqiang, positions itself not merely as a structure, but as a powerful architectural manifesto. Conceived as “the last monument to humanity,” the project encapsulates Earth’s ecosystems within a controlled vertical environment, presenting both a preservation strategy and a stark warning.

Shortlisted entry of Hourglass

Concept: Architecture as a Living Memorial

At its core, Biosphere X is an experimental model of sustainable architecture that transforms the idea of a memorial into an active ecological system. Instead of commemorating the past, the project projects a future where the biosphere itself becomes fragile and rare.

The design establishes an idealized biosphere within a transparent vertical structure placed in a harsh desert context. This contrast is intentional. Visitors are confronted with two realities: the thriving ecosystems inside and the degraded environment outside. The architecture does not dominate but frames the environment, acting as a vessel for life rather than a monument of mass.

The concept reinforces a simple but urgent message: protecting the Earth means protecting the biosphere. By presenting a “correct” ecological sample, the project allows visitors to understand how far current conditions deviate from natural balance.

Spatial Strategy: Layered Ecosystems in Vertical Form

The architectural organization of Biosphere X is defined by a stacked system of ecological zones, each representing a critical component of Earth’s biosphere. These include soil horizons, marine systems, glacial environments, wetlands, grasslands, rainforests, and atmospheric layers.

Each layer operates as a self-regulating ecosystem while contributing to a larger closed-loop system. The verticality of the structure compresses planetary diversity into a single spatial experience, enabling visitors to move through multiple climatic and ecological conditions within a controlled environment.

The design integrates circulation pathways that allow observation without disruption, reinforcing the role of architecture as mediator rather than occupier.

Environmental Systems and Technological Integration

A key aspect of the project lies in its environmental control systems. The biosphere is not static; it is dynamically maintained through artificial circulation mechanisms that regulate temperature, humidity, and chemical balance.

Specialized equipment floors monitor ecological parameters and ensure system stability. Chemical reaction tanks and atmospheric control systems simulate natural cycles, maintaining equilibrium across the layered environments.

This approach positions the project at the intersection of sustainable architecture and environmental engineering, where built form and ecological processes operate as a single system.

Experience and Perception: Confronting Climate Reality

The experiential quality of Biosphere X is central to its impact. Visitors encounter lush vegetation, wetlands, and marine life within a transparent enclosure, while the surrounding desert remains barren and desolate.

This juxtaposition creates a powerful psychological effect. The richness of nature becomes more apparent when framed against absence. The project does not rely on didactic explanation; instead, it communicates through spatial contrast and sensory immersion.

By comparing the idealized biosphere with the real world, the architecture exposes the abnormality of current environmental conditions. It transforms awareness into a visceral experience.

Timelessness and Longevity

Designed as a structure that could endure for generations, Biosphere X incorporates principles of long-term ecological stability. The internal regulation systems are based on biosphere circulation models capable of maintaining equilibrium over extended periods.

Rather than a static monument, the project functions as a continuously evolving system. Its longevity is tied not only to material durability but to its capacity to sustain life.

Global Relevance

The project speaks to a global audience by addressing a universal condition. Climate change is not localized; it affects the entire biosphere. Biosphere X reflects this by presenting the biosphere as a singular, interconnected entity.

The monument serves as a constant reminder of what the Earth should be. It challenges visitors to reconsider their relationship with the environment and recognize the urgency of collective action.

Jury Insights

Jonas Prismontas, Juror“Seems like this would require a lot of maintenance, but of course it would be very exciting to visit a monument like that!”

Yuriko Yagi, Juror“When I see the visualizations looking at the desert of the site through the rich nature inside the building, I understand this idea was simple yet powerful. I felt that the richness of nature, which we are losing nowadays, was combined with the surrounding context of the desert and it is created with contrast.

I feel that the proposal has the power to make you imagine many things, such as: the beauty of nature, the transience, the dystopian future that one day this building will be the only one left with a rich of nature.

The idea of minimizing the architecture itself and putting an emphasis on the earth's environment is great.”

Biosphere X redefines sustainable architecture by shifting its role from minimizing harm to actively preserving life. It is both a sanctuary and a warning, a structure that encapsulates the fragility and resilience of the Earth’s ecosystems.

In compressing the biosphere into a single architectural form, the project forces a confrontation with reality. It asks a fundamental question: if this becomes the last refuge of nature, what does that say about the world outside?