“…Exploiting the unique structure and properties of gas hydrates has yielded a spectrum of hydrate-based technologies, e.g. , gas separation, gas storage, juice concentration, cold storage, sludge dewatering, wastewater treatment, seawater desalination, and CO 2 sequestration . Among various gas hydrates, CH 4 hydrate stands out as an exceedingly promising clean energy source to replace traditional fossil energy, due to its wide distribution, huge reserves, high energy density, and low CO 2 emissions. − In the context of mounting energy scarcity and climate change concerns, efficient exploration and utilization of CH 4 hydrates have become a subject of intense interest in scientific and industrial circles. − Recent two decades have witnessed the execution of several field tests targeting CH 4 hydrate in diverse geographical locations, including the Shenhu area of the South China Sea (sea area), the Nankai Trough of Japan (sea area), the Qilian Mountains of China (land area), the North Slope of Alaska of the United States (land area), and the Mackenzie Delta of Canada (land area) .…”