a

b

c

d

a

b

c

d

Carbon captured by the world's ocean and coastal ecosystems

Carbon emissions released during the lifecycl of building materials throughout the cycle of building

carbon dioxide (CO₂)captured in the process of geologicalcarbon sequestration

carbon dioxide (CO₂) releasedin the process of coal gasification

d

c

a

b

a

b

c

d

a

b

c

d