Rio will be the first South American city to host the Games. Chicago's loss is a disappointment to President Obama, who traveled to Copenhagen to promote the US bid.
The Olympics cost billions and often leave venues deep in debt. But they inspire civic pride.
Each molecule remains in the atmosphere for about 100 years, meaning the gas can deplete the ozone layer as much others covered by the 1987 Montreal Protocol.
Maker of the fluorescent, smurf-like shoes appears to have staved off bankruptcy, but will it regain its former stride?
In our fast-paced society, a few holdouts for the sit-and-chat tradition.
Differences between major industrialized nations and developing countries are a stumbling block at a US-sponsored forum.