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.
1 Norville Shaggy Rogers: Casey Kasem was the original voice of Shaggy from 1969 until 1997. 2  Billy West voiced Shaggy in the 1998 direct-to-video feature Scooby-Doo on Zombie Island, while Scott Innes voiced the character from 1999 to 2001 (he would continue to voice Shaggy in video games through 2009).cooby's speech patterns closely resembled an earlier cartoon dog, Astro from The Jetsons (1962â63), also voiced by Messick. Seventeen episodes of Scooby-Doo were produced in 1969. The series theme song was written by David Mook and Ben Raleigh, and performed by Larry Marks and Paul Costello.