Climate flux matched Europe's social rise and fall

Ancient tree rings show links between climate change and major events in human history, like migrations, plagues and the rise and fall of empires, said a study this week in the journal Science.

Gateway towns to Yellowstone become dead ends after flood

This gateway town to Yellowstone National Park has become a dead end, a casualty of the severe flooding that tore through one of America's most beloved natural attractions and swept away roads, bridges and homes.

Roaming Russian eagles leave scientists broke

Russian scientists tracking migrating eagles were forced to start a crowdfunding campaign after their birds wandered into Iran and foreign text messages from their tracking devices depleted the project's budget.

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