As urbanisation accelerates across the Hindu Kush Himalaya, the brick industry - vital yet highly polluting - faces urgent calls for reform. ICIMOD, with partners, is leading efforts to promote cleaner, more efficient technologies like zigzag kilns, while addressing social challenges in the sector. With over 11,000 kilns converted in Punjab, Pakistan, and cross-provincial learning underway in Sindh, this transformation offers a scalable model for climate action, healthier communities, and safer livelihoods across South Asia.