Is the world better off with your building? In 99.9% of cases the answer is 'No'. Almost every building pollutes the air, water, soil and damages biodiversity. What if we turned that around and focused on making a positive contribution? If buildings purify the air, water and soil, create biodiversity and generate more energy than we use? Then we will heal the world with our buildings.

What Unilever's Paul Polman describes for companies in the book Net Positive, Vincent van der Meulen describ...