In coming 20 years, the energy consumption of communication and construction departments will increase fast. That of communication will occupy the percentage 5% higher than 2000 and that of the construction will increase 10% more than in 2000...

Until 2020, the communication department can reduce the consumption of 87 million tons of gasoline, half of the domestic crude oil output of that time. Until that time, the buildings will save energy for 160 million tons of standard coal...