Rammed earth is celebrated in sustainable/green architecture for:

• Thermal mass: Absorbs heat during the day and releases it at night, moderating indoor temperatures.
• Low embodied carbon: Uses local, natural soil — minimal processing, no cement required in traditional form.
• Durability: Can last centuries (e.g., Great Wall of China sections).
• Aesthetic: Beautiful natural striations and earth tones.

It is a vernacular material revived in contemporary eco-architecture.