U.S. Ecosystems Threatened by Climate Change
美國生態(tài)系統(tǒng)受氣候變化威脅

Natural ecosystems in the United States are under greater stress from climate change than at any previous time in human history, according to a new assessment by academic institutions public and private agencies. The report says these stressed ecosystems are also stressing wild plant and animal species and threatening the nation's biodiversity.
公共和私人學術研究機構的研究表明，美國的生態(tài)系統(tǒng)正在承受人類歷史上前所未有的壓力1L.QZKlLus7fEBe&1。報道稱，生態(tài)系統(tǒng)受到壓力后會給自然植物，野生動物帶來生存壓力，還會威脅國家的生物多樣性_0KL,w15DAM4lTFrO;。