Viganella in northern Italian lies at the bottom of a deep valley. It gets no sunshine for 83 days every winter, but a giant mirror reflects sunlight into the town square.
Germany has a reputation for being a renewable energy leader - but some believe that the nation's long, still and dim winters threaten such green aspirations.
Animals that grow a white coat in winter are at risk from predators as summers lengthen and snow cover retreats. But they could evolve faster than you might expect, according to a new study.
In 2013, after a refugee ship sank off the coast of Lampedusa, killing hundreds of people, the Italian island became synonymous worldwide with the global refugee crisis. Now after a slump, tourists have begun returning.
With its high number of parks and historic villas, Rome has become a top attraction for invasive species of birds. Reporter Megan Williams provides a personal take on sharing the city with the new avian arrivals.
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