Human Tech Tree
If solved2040s? · If Solved (becomes possible)

Energy & Industry / Manufacturing & Construction

Climate-Neutral Construction

Cement, steel and concrete are made without fossil emissions - cities grow without burdening the climate.

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If CO2-free cement and green steel become standard, building and infrastructure lose their largest emissions item. New binders would have to be anchored in standards, capture with storage available. Materials that store CO2 could turn buildings into sinks.

What it brings

  • Emission-free urban construction in Asia and Africa
  • Buildings as CO2 stores
  • Legal certainty for new building materials

Prerequisites

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