By Dalraj Nijjar But an innovative use of cement could help reduce the construction sector’s unseemly emissions, writes Dalraj Nijjar It’s undeniable that we need more homes, and so it’s welcome news that the government has announced plans to build 1.5m new homes by 2029. It’s an impressive and ambitious target, but it also raises significant questions about the environmental impact of the required large-scale construction. Not many talk about it, but the built environment is a major contributor to carbon emissions, with the construction sector accounting for approximately 14 per cent of the U…