Disappearing summer sea ice poses considerable dangers, scientists have warned.

科学家警告，夏天海洋冰面的消失会造成非常严重的损害。

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The disappearance of this summer sea ice pose significant dangers, scientists have warned.

科学家警告过，夏季冰盖的消融会引发十分严重的危险。

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But now scientists have warned women with wrinklier skin are more likely to have brittle bones.

不过科学家们警告，皮肤皱纹越多的女性更容易出现骨质密度过低的情况。

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Scientists have warned that if nothing is done, millions of people living around Lake Kivu are in danger.

BBC: 1986: Hundreds gassed in Cameroon lake disaster

Some scientists have warned that the outbreak has the potential to devastate the UK's population of 80 million ash trees.

BBC: Ash dieback could "devastate the Manx countryside"

But while scientists have warned us about chemicals such as chlorinated Tris since the 1970s, they continue to be used in products all around us, including furniture, cribs, mattresses and high-chair cushions.

CNN: Are toxic chemicals putting your family at risk?