A high-level celebration was held at UNEP headquarters in Nairobi, with the participation of the Executive Director of UNEP and Nobel Peace Prize winner Wangari Maathai.
环境署在内罗毕总部举行了一次高级别庆祝活动，环境署执行主任和诺贝尔和平奖获得者旺加里·马塔伊参加了这次活动。