Al Gore's anti-global warming/entertainment juggernaut continues. Gore, in conjunction with the Microsoft Network, just announced Live Earth, a series of Live 8-style worldwide concerts on July 7. Proceeds will go to found "a new, multi-year global effort to combat the climate crisis." (Yeah, but only after Ticket Master gets its cut.) The lineup includes Pharrell, Red Hot Chili Peppers, Foo Fighters, Snoop Dogg, Lenny Kravitz, and Bon Jovi, to name a few. (No word on enviropunks Green Day yet, but Snow Patrol will also be rockin' to protect the glaciers.) And before you shell out for tix, get up to speed with our recent coverage of climate change.