When glaciers melt due to global warming, they leave behind a sere and broken landscape. But researchers like Beat Frey are examining how new life evolves in the resulting rocky wastelands in the Alps. And his team has had some fascinating insights.
President Joachim Gauck's traditional Christmas Eve speech has been released in English. He said Germany had shown itself to be a "kind and caring country" amid the crises of 2015.
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