根据下面我给你的新闻，归纳出这则新闻的分类：
CGTN报道 The United Nations is calling for greater efforts to protect oceans.Secretary-General Antonio Guterres declared a global "ocean emergency" at the ongoing U.N. Ocean Conference in Portugal.He warns of rising sea levels, ocean heating, acidification and plastic pollution.Local residents dive into the sea to plant corals in Bali, Indonesia on June 8, 2022. [File Photo: CFP]The U.N. chief urges more green infrastructure and transport as well as higher investments in sustainable fishing.Over 3.5 billion people rely on oceans as a source of food, while 120 million work directly in fisheries and aquaculture.For more on ocean protection, our reporter Fei Fei spoke with Li Ji, an associate professor with Shanghai Jiaotong University.     媒体链接                                   U.N. calls for urgent efforts to tackle 'ocean emergency'
这条新闻的类别应该是“媒体聚焦”