area
big
carbon
coal
destruction
dig
digging
dust
earth
energy
environment
environmental
equipment
excavate
excavation
excavator
extract
extraction
fossil
fuel
heavy
hole
huge
industrial
industry
infrastructure
iron
land
landscape
large
layer
machinery
machines
material
mine
mining
open
open pit
opencast
pit
pollution
power
primary
raw
reserve
resource
source
supply
surface