"For dinosaurs, it was a big rock. For humans: coronal mass ejection (CME). When Earth is hit by the greatest CME in recorded history, the combine societies of

For dinosaurs, it was a big rock. For humans: Coronal Mass Ejection (CME). When the Earth is hit by the greatest CME in recorded history (several times larger t

Latin America’s experiments in direct democracy Since 2011, a wave of popular uprisings has swept the globe, taking shape in the Occupy movement, the Arab Spr

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For two months in 1871, the workers of Paris took control of Europe's most celebrated capital city. When they established the world's first workers' democracy--