Here are the top environmental links folks are Digging today:

• Care2: "My Charlie Brown Christmas"
— A Care2 user writes of his dilemma over whether to indulge wasteful nostalgia and buy a new Christmas tree every year.

Wired: "Drillers Accidentally Create First Live Magma Observatory"
— Scientists suddenly have the unexpected and unprecedented chance to study a live magma chamber, thanks to a happy drilling accident.

• Treehugger: "NSF Reports on Jellyfish Gone Wild"
— Treehugger links to the National Science Foundation's new website detailing the growing threat of jellyfish superswarms, which are fostered by warming, acidifying oceans.

Scientific American: "Can Nuclear Power Compete?"
Sci Am digs into the radioactive question of whether carbon-free power is worth nuclear's price tag.

National Geographic [photo gallery]: "2008 International Photography Contest winners"
— An impressive array of reader-submitted photos categorized as nature, people and places.

— Russell McLendon

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