East Asia is the world's main natural gas importing region, in which China became the world's largest gas importer in 2018. However, China's natural gas imports are subject to a high premium level, which increases the gas import cost and negatively impacts China's energy structure transformation...

This article is motivated by a conundrum: How can shale gas development be encouraged and managed without complete knowledge of the associated risks? To answer this question, we used back propagation (BP) neural networks and expert scoring to quantify the relative risks of shale gas development...