This photo taken on March 30, 2023 shows the management center of a zero-carbon demonstration zone in Boao, south China's Hainan Province. The Boao Forum for Asia (BFA) holds its annual conference from March 28 to 31 in Boao, a coastal town in China's southernmost province of Hainan. Green development and new energy drew much attention during the conference. (Xinhua/Yang Guanyu)