REFERENCES
Pollution
<http://www.aneki.com/world_urgent_problems.html>.
<http://www.ohiopeakoilaction.org/threats-environmentaldestruction.html>.
Climate Change
Improper Disposal of Solid Waste
Sun as a Cause
Environmental Degradation
Millennialism
World War
The Mayan Calendar
Comet as a Cause
Biblical References
Human Extinction
Eschatology
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