How much are your online data really worth?

By now Facebook users seem to finally get that they may not get charged anything for using the social networking service but it sure isn't free, not after being subjected to ad after spookily tailored ad.

Mountain erosion may add CO2 to the atmosphere

Scientists have long known that steep mountain ranges can draw carbon dioxide (CO2) out of the atmosphere—as erosion exposes new rock, it also starts a chemical reaction between minerals on hill slopes and CO2 in the air, ...

Punk, butt-breathing turtle joins unlucky club

Boasting a green, punk hairdo and the unusual ability to breathe through its backside, an Australian turtle has become famous overnight—but not only for its eccentricity.

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