燃やす
environmental
blue
building
carbon
chimney
climate
clouds
coal
condensation
construction
contamination
cooling
danger
ecology
electric
electricity
emissions
energy
environment
factory
fossil
fuel
generate
global
greenhouse
heat
industrial
industry
infrastructure
landscape
plant
pollution
power
production
radioactive
sky
smog
smoke
stack
station
steam
structure
technology
tower
toxic
vapor
voltage
warming
waste