A fragile ecosystem that were only just beginning to understand.

一个刚刚开始被了解的脆弱的生态系统。

So that now life itself maintains the very atmosphere that protects our fragile ecosystems.

因此，现在生命本身维持着保护我们脆弱生态系统的大气层。

My chances for a promotion are dead, just like the fragile ecosystem of that lake.

我升职的梦想破灭了，就像那个湖脆弱的生态系统一样。

John Hart has come here each summer since the 1970s, examining factors affecting life in this fragile ecosystem.

从上世纪70年代开始，John Hart每年夏天都会来这里，检查影响脆弱的生态系统的因素。

Scientists at the United Nations Intergovernmental Panel on Climate Change say that man-made factors challenged the world's fragile ecosystems.

联合国政府间气候变化专门委员会的科学家表示，人为因素给世界上脆弱的生态系统带来了挑战。

NPR's Elizabeth Shogren reports that an oily water mixture was still spilling out into the fragile, ecosystem this afternoon.

NPR新闻的伊丽莎白·苏格恩报道, 今天下午一种油水混合物仍然在慢慢还溢出进脆弱的生态系统中。

They did not always prioritize the protection of Mauna Kea's fragile ecosystems or its holiness to the island's inhabitants.

他们并不总是把保护莫纳克亚山脆弱的生态环境或维护莫纳克亚山对岛上居民而言的神圣地位放在优先位置。

Other invaders wreak so much havoc on fragile ecosystems that we can't help but notice even if billions aren't at stake.

我们不禁注意到其它侵略物种对脆弱的生态系统造成了巨大的破坏，尽管数十亿物种都没有到濒临灭绝的地步。

They're fragile ecosystems that are very sensitive to the increasing water temperatures from climate change.

它们是脆弱的生态系统，对气候变化导致的水温升高非常敏感。

Today, climate change and pollution are lowering coral's natural defenses while contributing to runaway seaweed growth — leaving reef ecosystems more fragile than ever.

在今天，全球暖化和环境污染在降低珊瑚的自然保护，同时使海藻肆意生长——让珊瑚生态系统越加脆弱。

People have realized that they need to adopt sustainable living habits to protect the earth's natural resources and fragile ecosystems.

人们已经意识到, 他们需要采取可持续的生活习惯来保护地球的自然资源和脆弱的生态系统。

In June following international criticism from environment groups who say potential oil leaks would destroy the park's fragile ecosystem and threaten its rare wildlife.

去年6月国际上的环境组织表示批评，称潜在的石油泄漏会毁坏公园脆弱的生态系统，并危及其稀有物种的生命。

Our precious soil is being washed away by increased rain, and in other seasons, new droughts are having a terrible impact on our fragile ecosystems.

大量的降雨冲走了珍贵的土壤，到了旱季，干旱严重危害着我们脆弱的生态系统。

He realized, with a heavy heart, that his relentless pursuit of the bountiful catch had taken its toll on this fragile ecosystem.

他怀着沉重的心情意识到，他对丰富渔获物的不懈追求已经对这个脆弱的生态系统造成了伤害。

These snakes can reach up to five meters in length and are hurting the fragile ecosystem of the park as they hunt birds, small mammals and even alligators.

这些蟒蛇身长可以长达五米，以鸟类，小型哺乳动物，甚至钝吻鳄喂食，破坏了公园脆弱的生态系统。