acid rain
air
air conditioner
air conditioning
air pollution
carbon dioxide
change
chimneys
climate
co2
coal
complexes
consumption
cooler
cooling
depletion
destruction
eco
electrical appliances
electricity
emissions
energy
environment
environmental problems
factories
fossil fuel
fuel
gas
global warming
hands
home appliances
industrial
industrial zone
industry
oil
plant
pollution
power generation
power plant
remote control
rise
room temperature
sky
smoke
sulfur oxides
temperature
thermal power generation
thermal power plants
warming