The Challenges We Face
"Challenges" are in progress now. Without attention some could lead to the end of civilization this century. This list may change as our understanding of the challenges we face improves.
Currently we have the following kind of Challenges:
* CEC: Civilization Ending Challenges
Events happening now that pose a civilization ending risk (this century).
* CIC
To approach a global sustainable civilization this century we need also to work on other serious challenges. These are identified as Civilization Improving Challenges.