Amazon’s Climate Pledge Fund and Holcim invest in startups 14Trees and Paebbl for sustainable building, advancing technologies like 3D printing and CO₂ storage in concrete. Holcim emphasizes pushing sustainable building boundaries, while 14Trees and Paebbl welcome the investments to scale their technologies. Holcim and BII established 14Trees in 2016, focusing on sustainable construction solutions in Africa, while Paebbl converts CO₂ into a carbon store. Holcim aims to build progress for people and the planet with innovative solutions.