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Companies such as Samsung and Germany's Tado are already working on technology including app-controlled air conditioning units that automatically turn off when people leave the room, and IEA spokesman Brian Motherway said increased consumer education was one simple step that could make a huge impact in reducing energy use.

Cole flowers in Wuyuan county, East China's Jiangxi province. [Photo/Xinhua]

Cong Yi, a professor at Tianjin University of Finance and Economics, suggested that the development of an urban nighttime economy should be more targeted and that the culture and tourism industries in cities should be better developed as well.

Companies from the United States doing business in China are becoming more optimistic about China-US business ties despite the possibility of restrictive trade actions from the Trump administration, a new survey said on Tuesday.

Compared with the inaugural expo that took place from Nov 5-10 in Shanghai, the scale of the second CIIE will be bigger and will attract more exhibitors, according to Zhong.