Bhutan is endowed with abundant natural and renewable energy resources. However, its mountainous terrain and the resulting difficulties in extending the grid have prevented a large percentage of the rural population from accessing clean energy.
Beijing and Tianjin municipalities and Hebei province make up the economically important Beijing–Tianjin–Hebei (BTH) region in the northern part of the People’s Republic China (PRC). Home to 109.2 million people, the region generated 10% of national gross domestic product (GDP) in 2013. It is an engine of PRC’s socioeconomic development, but poor air quality jeopardizes sustainable growth.