In this talk, Sanne van der Burgh explores how architects can respond more meaningfully to the climate crisis by focusing on embodied carbon, the emissions locked into the materials and construction of buildings. Drawing on the work of MVRDV NEXT, she shows how computation can be used not just to create complex architecture, but to better understand where a building’s real environmental impact lies. Challenging common assumptions around sustainability, the talk argues that the biggest carbon decisions are often not about form, but about structure, materials, basements, and overall building weight. Through the development of CarbonSpace, an open tool for early-stage carbon design, Sanne makes the case for a simpler, more intuitive way of designing with carbon from day one. More broadly, the talk is a call for architects to expand their role, using design, data, and influence to help drive real change across the built environment.