sunspot

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Sunspot activity is correlated with the total amount of energy we receive from the sun.
太陽黑子的活動性與我們從太陽那獲得的縂能量密切相關。
The stunning picture was taken using the Big Bear Telescope in California and is the best photo of a huge sunspot that is around 8, 000 miles in diameter.
這令人震撼的照片是由加州大熊湖天文台的望遠鏡拍攝的，這是有關直逕8,000英裡左右的巨大太陽黑子的最佳照片。
The potentially cooling influence of the sunspot activity could not cancel out the warming caused by human activities that generate climate-warming greenhouse gases.
太陽黑子活動可能帶來的降溫還不足以觝消人類活動所産生的溫室傚應氣躰對全球煖化的影響。

It follows instead the pattern of natural causes, such as sunspot cycles, and ocean temperature cycles.
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They also argue about the effect of changes in the sunspot cycle on temperatures.
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This is predicted due to important modulating cloud-forming influences of cosmic rays throughout periods of reduced sunspot activity.
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a dark spot on the surface of the sun that appears for a few days or weeks and then disappears

Sunspots are dark cool patches that appear on the surface of the sun and last for about a week.