above

aerial

air

area

atmosphere

blue

chemical

chimney

city

climate

conditions

construction

cooling

damage

dioxide

drone

ecology

emissions

energy

environment

environmental

factory

fuel

fumes

generation

humanity

industrial

industry

manufacturing

metallurgical

nature

near

pipes

plant

poor

powerful

production

river

sky

smog

smoke

smokestacks

smoking

territory

toxic

trail

urban

vapor

view

zone