marine pollution and biological protection， April 28 (Xinhua) -- Chinese President Xi Jinping on Sunday called for joint efforts to tackle environmental challenges at the opening ceremony of the International Horticultural Exhibition 2019 Beijing. Xi said that only with concerted efforts can we effectively deal with global environmental issues such as climate change，皇冠体育网址， April 29，皇冠体育网址， Xi calls for joint efforts to tackle environmental challenges (Xinhua)10:57， and achieve the United Nations 2030 Agenda for Sustainable Development goals. (For the latest China news， Please follow People's Daily on Twitter and Facebook ) (Web editor: WenYing，皇冠体育官方， LiangJun) Add your comment Please enable JavaScript to view the comments powered by Disqus. ，皇冠体育网址， 2019 BEIJING，皇冠体育网址，。