Splat! Geek-in-chief Obama tests marshmallow gun

US President Barack Obama tested a new prototype Tuesday for his commander-in-chief's arsenal -- a high-powered marshmallow gun that sent a tasty missile screaming through the White House.

Landmark carbon assessment developed for Australia

The Australian landscape soaked up one third of the carbon emitted by fossil fuels in Australia over the past twenty years, according to a new CSIRO study released last week.

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