ScienceDaily, Apr. 11, 2008 — “In a world without human-produced pollution, biological productivity controls cloud formation and may be the lever that caused supergreenhouse episodes during the Cetaceous [sic] and Eocene, according to Penn State paleoclimatologists.
Kump and David Pollard, senior research associate, Earth and Environmental Systems Institute, looked for another way to create a world where mean annual temperatures in the tropics were above 100 degrees Fahrenheit and polar temperatures were in the 50-degree Fahrenheit range. Changing the Earth’s albedo — the amount of sunlight reflected into space — by changing cloud cover will produce supergreenhouse events, the researchers report April 11 in the journal Science.
According to the researchers, changes in the production of cloud condensation nuclei, the tiny particles around which water condenses to form rain drops and cloud droplets, decreased Earth’s cloud cover and increase the sun’s warming effect during supergreenhouse events.
Normal cloud cover reflects about 30 percent of the sun’s energy back into space. Kump and Pollard were looking for a scenario that allowed in 6 to 10 percent more sunlight.”
This is interesting to me because of my familiarity with the Book of Genesis, where it says things like … Continue reading