The earth's resources are finite, and the tragedy of the commons occurs when everyone's property 'becomes no one's property.
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Population growth and the 'tragedy of the commons'
Country U.S.
per capita footprint (hectares) 10.3
population (millions) 280.0
total footprint (hectares) 27,623,467
total available (hectares) 17,968,663
The modes are antibiotics, antibacterial, antifungal, and antiviral agents.
Without the Nile Egypt will be another piece of yellow desert with few oasis here and there. The ancient Egyptians completely depended on the Nile flooding every year in summer to get their food, it was an agricaltural civilization.
Christopher columbus voyage was discovering the Americas.