If a country's, or the world's, total ecological foot-print is larger than its biological capacity to replenish its renewable resources and absorb the resulting waste products and pollution, it is said to have an ecological deficit.In 2006,the World Wildlife Fund(WWF)and the Global Footprint Network estimated that humanity's global ecological footprint exceeded the earth's biologi-cal capacity by about 25%(Figure 1-8,bottom)
That fig-ure was about 88% in the world's high-income coun-tries,with the United States having the world's largest total ecological footprint.
如果一個國家的，或者世界上，總生態英尺打印大於它的生物能力，以補充其可再生資源和吸納所產生的廢物和污染的產品，這是說，有一個生態赤字。
在2006年，世界自然基金會人類的全球生態足跡超過了地球的生物力學能力約25 ％
該圖-茜約88 ％在世界上高收入國家的嘗試，與美國擁有世界上最大的總生態足跡。
