Clouds and Pre-Human “Supergreenhouse Periods”

EurekAlert! AAAS 10-Apr-2008 Pennsylvania State University Contact: A’ndrea Elyse Messer aem1@psu.edu 814-865-9481 Absence of clouds caused pre-human supergreenhouse periods In a world without human-produced pollution, biological productivity controls cloud formation and may be the lever that caused supergreenhouse episodes during the Cetaceous and Eocene, according to Penn State paleoclimatologists. “Our… Continue reading