Sun Lili (C), founder of Shenzhen Mangrove Wetlands Conservation Foundation, attends a ceremony to hand over the letters of appointment to 16 newly appointed Mangrove Wetland Education Promotion Ambassadors at Upperhills in Futian District on Thursday, when the first China Mangrove CEPA (communication, capacity building, education, participation and awareness) International Symposium kicked off. The two-day symposium has gathered wetland conservation experts from home and abroad. It is also a sideline event of the 2023 China Nature Education Congress, which will be held from July 7 to 9 in Guangzhou, capital of Guangdong Province. Liu Xudong