The numbers are coming in now on LiveEarth, and they are falling well short of the "2 billion" quoted by promoters. The Daily Mail called the show a "foul-mouthed flop:"
Live Earth peaked with 4.5 million viewers in Britain, compared with 14.8 million for the Diana concert.
Other estimates have the BBC's average audience under a million:
BBC’s live afternoon television coverage attracted an average British audience of just 900,000...
NBC turned a bad night even worse:
The estimated 2.7 million viewers were slightly less than the 3 million NBC would average on a normal Saturday night in the summer with repeats on what already is the least-popular night of television.
The show seemed to do best in Australia, where it garnered 1.34 million viewers
Only in the mind of a global climate warming change disciple could less than 10 million become 2 billion.