Core Viewpoint - The article highlights the efforts made by mainland China in protecting the Yangtze River and the positive ecological changes observed in Chongqing, as experienced by Taiwanese participants during a recent exchange event [1][2][3]. Group 1: Ecological Protection Efforts - The Taiwan Democratic Alliance has conducted 40 research visits and 40 seminars over five years, contributing over 160 suggestions for the protection of the Yangtze River [2]. - The population of Yangtze River dolphins has increased to 1,249, up by 237 since 2017, indicating successful conservation efforts [3]. - Chongqing's water quality has maintained a Class II standard for eight consecutive years, suitable for drinking water sources and rare aquatic habitats [4]. Group 2: Urban Development and Cultural Exchange - Participants expressed admiration for Chongqing's unique urban landscape, likening it to Manhattan, with modern skyscrapers and traditional architecture coexisting [5]. - The event allowed Taiwanese participants to learn about the historical and cultural ties between the two sides, enhancing their understanding of the role of the Taiwan Democratic Alliance in significant national issues [2][6]. - Local Taiwanese entrepreneurs are engaging in eco-friendly agricultural projects, reflecting a growing awareness of environmental issues among the youth [4][5].