Manure

• Every year the world’s livestock generates 13 billion tonnes of manure¹
• That’s 35,616 Empire State Buildings!²

⁽¹⁾ http://www.cnn.com/2008/WORLD/asiapcf/01/07/eco.about.manure/index.html

⁽²⁾ http://www.esbnyc.com/tourism/tourism_facts.cfm

Calculation:
13 billion tonnes / 365,000 tonnes = 35,616