Knowledge
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December Trivia
From birthstones to ancient observances to ... Festivus? ... test your knowledge of everything going on in December.
Points available: 10
 
Inside Knowledge
 
Popular Stories
- Thirsty in paradise: Water crises are a growing problem across the Caribbean islands
- Editorial: Will spiking price of meat, dairy save the planet?
- Paying people to replant tropical forests − and letting them harvest the timber − can pay off for climate, justice and environment
- How trash, sprawl and a warming world impact Michigan mosquito seasons
- SpaceX set for Sunday night launch on southerly trajectory