air

annihilation

blaze

blue

burn

chimneys

clogging

cloud

coal

contamination

drill

ecology

emissions

energy

environment

environmental

exhaust

fire

flambeau

flame

flare

flaring

fossil

fuel

gas

gasoline

global

heat

industry

inferno

methane

natural

nature

oil

ozone

petroleum

pipeline

plant

platform

pollution

power

production

refinery

sky

smog

smoke

torch

toxic

tube

warming