科学家警告说，在我们的有生之年，地球可能会失去所有动植物物种的三分之一

科学家警告说，在我们的有生之年，地球可能会失去所有动植物物种的三分之一
 

A study found that a third of animal and plant species could be wiped from existence as temperatures soar across the globe.

一项研究发现，随着全球气温飙升，三分之一的动植物物种可能会消失。

Researchers at the University of Arizona examined 538 species at 581 sites worldwide.

亚利桑那大学的研究人员调查了全球581个地点的538个物种。

They focused on creatures and plants found at the same sites over a ten-year period or more.

他们着重研究了在同一地点发现的生物和植物，时间跨度为10年或更长。

More than four in ten of the species studied have already gone extinct at one or more sites.

超过四成的研究物种已经在一个或多个地点灭绝。

After combining this data with predictions of Earth’s future climate, scientists made a grim discovery.

科学家们将这些数据与对地球未来气候的预测结合起来，得出了一个残酷的发现。

Based on current projections, as many as one in three of Earth’s eight million plant and animal species could be gone within the next 50 years.

根据目前的预测，在未来50年内，地球上800万动植物物种中有三分之一可能消失。

Species were more likely to go extinct at locations that regularly hit their maximum annual temperatures – the hottest daily highs in summer.

物种更有可能在每年最高温度的地方灭绝——夏天最热的时候。

As global temperatures rise due to climate change, many of the planet’s key habitats are expected reach these maximums more frequently.

随着全球气温因气候变化而上升，地球上的许多主要栖息地预计将更频繁地达到这些峰值。

It’s down to humanity to tackle global warming if Earth’s ecosystems are to be saved, researchers said.

研究人员表示，如果要拯救地球的生态系统，人类就必须解决全球变暖的问题。

The first step would be for nations to stick to the Paris climate deal, which in 2015 saw 195 countries set goals to keep global warming under 1C from current levels.

第一步是各国坚持巴黎气候协议。2015年，195个国家制定了将全球变暖控制在1摄氏度以下的目标。

“If we stick to the Paris Agreement to combat climate change, we may lose fewer than two out of every 10 plant and animal species on Earth by 2070. But if humans cause larger temperature increases, we could lose more than a third or even half of all animal and plant species, based on our results.”

“如果我们坚持《巴黎协定》来应对气候变化，到2070年，地球上每10个动植物物种中就有不到两个会消失。但根据我们的研究结果，如果人类造成更大的气温升高，我们可能会失去三分之一甚至一半以上的动植物物种。”

The study was published in the journal Proceedings of the National Academy of Sciences.

这项研究发表在《美国国家科学院院刊》上。