Build heat in the center of your body as you hold this challenging posture. (yogajournal.com)
Burning biomass (such as plant and animal waste) will supply 60 % of industrial fuels and heat, 13 % of building heat, and 13 % of electricity needs. (treehugger.com)
Benefits of cool roofs include reduced building heat - gain and saving on summertime air conditioning expenditures. (rabett.blogspot.ru)