The demand to reduce the greenhouse gases (GHGs) is a must to address the problem of climate change. This paper aims to help the decision makers locally and internationally to reduce the building's CO₂ emissions in the project design phase. The paper studies the indoor CO₂ emissions of green and conventional building. The assessment of embodied carbon of a green building material has been studied. It was found that the reinforced concrete has the significant negative impact, as it represents 78% of the total embodied carbon emissions. On the other hand, the insulation materials represent (2%) of the total emissions. Heavyweight cast concrete and the autoclaved aerated concrete have been proposed as alternatives, it was found that they achieved 23% & 50% reduction in the total embodied carbon emissions respectively. It is recommended to use autoclaved aerated concrete component as environmental alternative to reinforced concrete.

减少温室气体（GHG）的需求是解决气候变化问题的必要条件。本文旨在帮助本地和国际决策者在项目设计阶段减少建筑物的 CO ₂排放。该论文研究了室内 CO ₂绿色和传统建筑的排放。已经研究了绿色建筑材料的隐含碳的评估。研究发现，钢筋混凝土具有显着的负面影响，因为它占总隐含碳排放量的 78%。另一方面，绝缘材料占总排放量的 2%。重质浇注混凝土和蒸压加气混凝土已被提议作为替代方案，结果发现它们分别将总隐含碳排放量减少了 23% 和 50%。建议使用蒸压加气混凝土组件作为钢筋混凝土的环保替代品。