CIVL439/W00D476 Carbon and Global Carbon Sequestration Temperature of Trees o: U.S.Energy Consumption by Sector Life Cycle Analysis ·&oufeafU8nabcateaesgstute, t all life of the budng 3CIVL439/WOOD476 3 Carbon and Global Temperature Carbon Sequestration Sequestration of Trees On average a typical tree absorbs tree absorbs 1 tonne 1 tonne of CO2 and produce 0.7 tonne of O2 per m3 of growth Industries 22.7% Transportation 28.2% U.S. Energy Consumption by Sector Data Source: U.S. Energy Source Information Administration (2009) Buildings 49% • How do we compare the environmental impact of various construction material? Life Cycle Analysis • ATHENA™, Sustainable Materials Institute, conducted a LCA study comparing the environmental impact of building a 240 m2 single family house using wood framing, sheet metal framing and concrete sheet metal framing, and concrete • Assessed environmental effects at all stages of the product's life including resource procurement, manufacturing, on￾site construction, building service life and de-commissioning at the end of the useful life of the building Extraction Processing Design Manufacturing Distribution Use Land Water Air Cradle Repair Disposal Raw Material Energy Water Gate Grave