The Answer Is Earth is a documentary co-produced with Warner Bros. Discovery, exploring China’s low-carbon transition and green practices with support from the Ministry of Ecology and Environment of China. Featuring Zhang Linghe, the documentary combines on-site exploration of clean energy projects with insights into sustainability efforts, highlighting both technological innovation and the human expertise driving environmental change. Filmed across four cities, namely, Yancheng, Suzhou, Changzhou, and Wuxi, it offers a comprehensive look at how green electricity is generated, stored and deployed, and how the energy integrates with the circular economy.