In fact, scientists already have much of the information needed to assess the impact of biological control of bracken, but it is spread among many individuals, organizations, and government bodies.

事实上，科学家已经掌握了评估生物控制蕨类植物的影响所需要的大量信息，但是这些信息在许多个人、组织和政府机构中传播开来。

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Trying to recreate an event that happened billions of years ago is a daunting task, but many scientists believe that, like the emergence of life itself, it is still possible.

想要重现几十亿年前的一件事是个艰巨的任务，但仍有许多科学家相信，就像生命本身的出现一样，这还是有可能的。

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The el nino weather pattern has contributed to higher temperatures, but many scientists say elevated levels of man-made greenhouse gases are pushing temperatures higher.

厄尔尼诺现象助长了这个更高的温度，但很多科学家认为人造温室气体的排放的升级把全球温度推向更高。

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But the key to sparing the stomach, many scientists believe, also puts patients at risk for heart attacks and strokes.

FORBES: Vioxx, The Sequel

But those findings were based on limited observations, and many scientists considered them to underestimate the melting.

WSJ: Polar Ice Sheets Melt at Faster Pace

As an institution, CRU has survived the episode with its main scientific staff still functioning, but with reforms to its operation in terms of increased openness - changes that many mainstream scientists believe will be beneficial to all in the long run.

BBC: 'ClimateGate': Case closed?