Is it the influence of Sustainablogability or just a hot topic in 2007?!

I listened with interest to the news this morning that the organisers of Live 8 are planning Live Earth this Summer.

The BBC website states that the organisers expect Live Earth to become "the model for future carbon neutral concerts" (http://news.bbc.co.uk/1/hi/entertainment/6367515.stm) but I'm a cynic at heart and I wonder if the hot topic for 2008 will still be the climate change debate?