They estimated that water vapor accounts for about 50% of Earth's greenhouse effect, with clouds contributing 25%, carbon dioxide 20%, and the minor greenhouse gases and aerosols accounting for the remaining 5%. In the study, the reference model atmosphere is for 1980 conditions.
Main Characters. 1  Scooby-Doo - Frank Welker. 2  Shaggy Rogers - Casey Kasem. 3  Fred Jones - Frank Welker.  Daphne Blake - Grey 1  Delisle. Velma Dinkley - Mindy Cohn.
Notes/trivia. 1  The junior-high school aged, A Pup Named Scooby-Doo version of Velma was animated with a rapid walk similar to that of Marvin the Martian. 2  In the Johnny Bravo episode, Bravo Dooby-Doo, the Scooby-Doo cast meet Johnny, with Velma briefly developing a crush on him, but changed her mind by the episode's end.