Word: naturale
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"The only tree capable of growing in the shade of a Norway maple is another Norway maple," Smith says. It tends to crowd other plants out of their natural habitats and the result is a monoculture forest - only one kind of tree as far as the eye can see. The...
According to Smith, the regions of the country where invasive plant species are most widespread are those under the most pressure to develop, such as suburban communities, summer vacation spots or natural-resource extraction sites. Like a body with a weak immune system, Smith says, "An ecosystem under stress is...
But she also had an agenda, which she pursued under the umbrella term beautification. At a time when environmentalism was a word few had heard, she did more to make Americans aware of the beauty and frailty of their natural surroundings than anyone since Teddy Roosevelt. Before there was an...
The ice-frozen North Pole is currently a no man's land supervised by a U.N. Commission. The five Polar countries - Russia, the U.S., Canada, Norway and Denmark - each control only a 200-mile economic zone along their coasts. And none of these economic zones reach the North Pole. Under...
So, the Russians claimed a great scientific discovery late last month. An expedition of 50 scientists that spent 45 days aboard the Rossia nuclear ice-breaker found that an underwater ridge (the Lomonosov ridge) directly links Russia's Arctic coast to the North Pole. This, they insist, surely guarantees Russia...