veganomics - a vision for a world-wide sustainable society based on vegan economics.

Saves water - 

Saves land - prevents war

Ensures food security - 

More efficient food production - 

Less pollution - 

Less disease - no animal/human cross-over viruses from intensive animal 
farming (e.g. bird flu, swine flu, BSE, CJD), less obesity, heart disease, 
atherosclerosis, cancer, diabetes...