Nature highlights

Key research and analysis from this week's Nature magazine.

• Alzheimer's disease: New Alzheimer's drugs from old?
  
• Climate change: Accounting for carbon
• Black holes: Casting light on X-ray emissions
• Carbon nanotubes: Molecular channels for water
• X-ray microscopy: Light goes fourth
• Feeding behaviour: Enough's enough
• Embryology: Arterial route
• Anthrax: Possible targets for therapy

8 November 2001 table of contents