Hotter temperatures lead to higher energy bills and a larger draw on the utilities and greater production of pollution from coal, oil, and natural gas fired power plants.

All scientists subscribe_to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy.

The natural gas supply control system, structure and function of burning frame as well as temperature control procedure of furnace of the annular baking furnace are introduced.