The correlation of carbon dioxide with temperature, of course, does not establish whether changes in atmospheric composition caused the warming and cooling trends or were caused by them.

当然，二氧化碳与温度的相关性并不能确定是大气成分的变化导致了气候变暖或变冷的趋势，还是它们本身造成的。

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In addition to weightlessness, the atmospheric composition (CO2 levels), ambient noise levels, stress levels, etc.

除了失重之外，大气成分(二氧化碳浓度)、环境噪声等级、压力水平等都不一样。

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An atmospheric composition monitoring system, in which the sun-tracking and FTIR spectroscopy are combined, is introduced.

介绍研制的太阳跟踪和傅里叶变换红外(FT IR)光谱技术相结合的大气成分监测系统。

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Astronomers would like to pin down the masses of the planets (information difficult to acquire with Kepler), as well as getting that data on atmospheric composition.

BBC: Kepler telescope spies 'most Earth-like' worlds to date

As an explanation for the conundrum of the ice ages, this notion could only hold water if a mechanism for such large changes in atmospheric composition might be found in the real world.

FORBES: Global Warming Is No Threat?

Each day, the scientific community collects millions of individual Earth observations, allowing us to examine, monitor, and model atmospheric composition, seismic activity, ecosystem health, weather patterns, and hundreds of other characteristics of our planet.

WHITEHOUSE: Office of Science and Technology Policy Blog