燃やす
atmosphere
burning
climate
contamination
dry
ecology
environment
fire
flame
forest
global
grass
hill
industrial
industry
landmarks
landscape
lumber
meteorological phenomenon
moss
mountain range
mountains
nature
oil
ore dump
peat bogs
pipe
plant
pollution
polution
river
root
russia
shield volcano
sky
slope
smog
smoke
smokestack
soiling
spoil bank
stack
stump
taiga
torch
tundra
volcano
wasteland
wood