尽管还不知道是否仅仅简单地改变周围灯光的亮度也会有同样的作用。
It was not known, though, whether simply altering ambient light intensity might have similar effects.
用手指在手机屏幕左侧上下滑动可以改变屏幕的亮度。
When you slide your finger down the left side of the device screen, the brightness changes.
事实上，气候科学家们怀疑，这些提高云层亮度与寿命的改变，有可能帮助抵消了一些不断上升的温室气体浓度所造成的变暖影响。
In fact, climate scientists suspect that these modifications-increasing cloud brightness and lifetime-have probably helped offset some of the warming influence of rising greenhouse gas concentrations.
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