Can fixing energy-wasting buildings stave off global instability? Former president Bill Clinton thinks so. In the biggest project his foundation has taken on since securing a supply of cheap generic AIDS drugs for third world countries, Clinton has brokered a $5 billion effort to finance the retrofit of old buildings in 16 cities around the world. The project, which Clinton announced at a climate conference in Manhattan yesterday, creates a financing and labor pool to replace energy-hogging light fixtures, as well as install better building insulation and more efficient HVAC systems. ABN Amro, Citigroup, Deutsche Bank, JPMorgan Chase, and UBS