Water vapor (clouds) act as the earth’s thermostat

“According to Germany’s Goethe University, Carnegie Institution for Science climatologist Anna Possner’s research on layered clouds in the lower atmosphere shows that clouds “act as a semi-transparent parasol” and “reflect a significant portion of incoming sunlight” and “have a cooling effect on Earth’s surface.” …and that cloud changes “can result in significant changes to Earth’s surface temperature”. click here

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