每分钟损失四十个足球场？来看真相
Last year marked another record year of loss for tropical forests.
去年是热带森林减少非常显著的一年。
About 39 million acres of tree cover disappeared in 2017 – an area the size of Bangladesh – according to data released Wednesday by the World Resources Institute.
据世界资源研究所周三发布的数据，2017年大约有三千九百万英亩的森林消失——大约是孟加拉国的大小。
That amounts to 40 football fields every minute for a whole year, making it the second-worst year of tree loss on record.
相当于一整年里每分钟失去40个足球场大小，使其成为了史上森林丢失第二严重的一年。
The worst was just a year earlier, in 2016.
最严重的一年是更早一年，2016年。
To gauge the amount of loss, thousands of NASA satellite images from 2001 to 2017 were analyzed through artificial intelligence at the University of Maryland.
为了评估损失，马里兰大学的研究员们对2001-2017的上千幅美国航空航天局的卫星照片，用人工智能进行了分析。
Then, researchers at the World Resources Institute's Global Forest Watch assessed the changes in tree cover.
然后，世界资源研究所全球森林监察的研究员们对植被变化进行了评估。
"In some ways [our research] is not noteworthy," Mikaela Weisse, a research analyst at WRI, told us.
“从某些角度来说（我们的研究）也没什么大不了的，”麦琪拉.威瑟告诉我们说，他是世界资源研究所的一名调研分析员。
"Things have been continuing as they have been. What's depressing is that there has been a lot of international and national commitments to reduce deforestation, and we are hoping this will have an impact, but the data is showing that it's not having as much of an impact as we hope."
“事情还是朝着原有的方向进行。令我们感到失望的是，有很多国际和国家都承诺要减少森林损失，我们也希望能有所成效，不过数据表明并没有达到预期的结果。”
The report presents a bleak picture: some areas are experiencing prolonged loss of lush forest while new areas are becoming hotspots.
报道展示一幅凄惨的景象：有些地区还在经历旷日持久的丰富森林的丢失而新的区域也加入了重灾区行列。
"Places that haven't been on our radar so much are all of a sudden going through this major transformation," Weisse said.
“以前没有被列入我们监测范围的区域突然也发生了大变化，”威瑟说道。
"The report is telling a bleak picture, but it isn't necessarily telling us that we should give up," Weisse said.
“报道展现的图景不容乐观，不过也不是说我们就只能放弃了，”威瑟说道。
"It's more of a wake-up call. What we are doing right now isn't enough."
“它更多的是一种警醒。我们的努力还不够！”
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