adult
background
black
caucasian
charcoal
coal
danger
dark
death
dirty
earn
exploitation
extraction
fossil
fuel
industry
job
labor
labour
lignite
male
man
mature
middleaged
mine
miner
minerals
mining
occupation
people
person
placard
portrait
processing
production
profession
protest
protesting
rally
resources
risk
senior
soot
stone
tunnelling
underground
word
work
worker