for - stats - carbon footprint of stone, steel, concrete

stats - carbon footprint - stone, steel , concrete - ( see below)

• The Inventory of Embodied Carbon and Energy 2019 says carbon footprint of the following building materials are:
  • ‘General stone’ - 0.079kg carbon per kg .
  • Concrete - 0.15kg carbon per kg and
  • Steel - 2.8kg carbon per kg.