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Rewilding is a term coined in the 1990s by those working in conservation and environmental activism. It refers to large-scale wilderness recovery that allows natural processes and native wildlife to flourish in its proper place.
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The Northern Lights, also known as the Aurora Borealis, are waving ribbons of green, red and purple in the sky. These curtains of light can be seen as far south as the South Pole. In the southern hemisphere, however, they're called the Aurora Australis. They can also sometimes be seen in New Zealand or Chile.