联合国秘书长潘基文2015"地球一小时"致辞
On March 28 at 8:30 pm, the United Nations will switch off its lights in support of Earth Hour. We do this each year to call attention to the need for climate action now, and the brighter future that lies ahead if we act together. Climate change is a people problem. People cause climate change and people suffer from climate change. People can also solve climate change. This ...