Of the total solar radiation intercepted by the earth,about 1% reaches the earth's surface, and most of it is then reflected as longer-wavelength infrared radiation.As this infrared radiation travels back up through the lower atmosphere toward space,it encounters the greenhouse gases such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone.It causes these gaseous molecules to vibrate and release infrared radistion with even longer wavelengths. The vibrating gaseous molecules then have higher kinetic energy, which helps to warm the lower atmosphere and the earth's surface. Without this natural greenhouse effect ,the earth would be too cold to support the forms of life we find here today.
太陽的總輻射被太陽所攔截,其中的1%會到達地球表面,大多數都會以長波紅外線反射回去。當紅外線經過較低空的空間時,他會遇到溫室氣體,例如水蒸氣、二氧化碳、甲烷、氧化亞氮氣、和臭氧,他造成這些氣體分子震動和發出長波紅外線,震動的氣體分子就會擁有很高的動能,能幫助低空和地面的暖化,沒有自然溫室效應的話,地球會太寒冷以至於不能維持我們現今的生活方式。
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