An aerial drone photo taken on March 16, 2025 shows the photovoltaic devices on the roof of the Boao Forum for Asia (BFA) News Center and its annex buildings in the Boao zero-carbon demonstration zone in Boao, south China's Hainan Province. China's Boao has announced the establishment of its first zero-carbon zone, a significant step forward in the country's pursuit of low-carbon development, according to authorities in Hainan. (Xinhua/Pu Xiaoxu)