According to various predictions by numerous people, including many scientists, the following is a list of problems we humanity as a whole are facing, both now in many places as well as in the future in others. Many of these potential disasters are overdue, and some are already occurring.

• Economic meltdown
• Epidemics
• Super-volcanic eruptions
• Megaquakes
• Tsunamis
• Sea level rise
• Solar flares
• Meteor/asteroid/comet strikes
• Climate change, either runaway global warming and greenhouse effect, or an ice age
• Mass extinction of flora and fauna
• Water shortages
• Drought and desertification
• Crop failures
• Famine
• Pollution
• Nuclear disasters
• Structural meltdown from lack of repair, including highways and other roads, bridges, dams and assorted buildings
• Peak oil
• Battles over resources
• Religious and racial strife
• Etc., ad nauseam