Weeks before announcing a $300-million, three-year advertising campaign to raise awareness about global warming, Al Gore was conducting a slide show for a group of investors in Monterey, Calif., touting companies such as Bloom Energy, Amryis , Mascoma and other firms that are not household names -- yet.
Without government action on climate change, some business analysts say green companies backed by KPCB are either unlikely to be profitable or that their growth will be slow.
