Scientists point out that the globe is getting warmer and warmer.

科学家指出地球正在逐渐变暖。

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However, other scientists point out that the experiment doesn't show that the birds can remember specific landmarks they could use for navigation.

但是其他科学家则指出，这项试验并不能表明候鸟能记住可以用来导航的特定地标。

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The drop in mortality, some scientists point out, is partly due to better treatment for heart disease and to a decline in smoking among middle-aged men.

一些科学家指出，心脏病死亡率的下降部分归功于心脏病医疗手段的提升，中年男子吸烟率的下降。

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With many projects competing for financial support, scientists point out that the process must be seen to be open and fair.

BBC: The UK retains its involvement in the Eiscat radars for now

Social scientists point out that in urban middle class families, there now seems to be a reversal of the old trend, with a female children being preferred.

BBC: Abandoned baby boy reverses trend

Climate scientists point out that there is evidence to show that the sustained rise in global temperatures over the past 15 years cannot be explained by cosmic ray activity.

BBC: Cloud simulator tests climate models