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Well camouflaged and highly elusive, snow leopards are seldom seen. Researchers can’t say how many snow leopards remain in the wild. Many believe there are as few as 4,000 animals scattered across the mountains of 12 countries. The very real possibility of Snow Leopard extinction looms. Loss of habitat from mining has placed increased pressure

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The Indian Himalayas, 4000 meters above sea level. Here winds carry more than smoke and dust. Mantras of compassion and goodwill are blown across these mountains. People have managed to eke out a living in this stone wilderness with what little the land provides. For the village of Gya, livestock is precious providing many of

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JUDY WOODRUFF: While the impeachment trial dominates the spotlight in Washington, the president turns his focus to touting the American economy. He flew to Europe for the annual meeting of the world’s business and economic elite. “NewsHour” special correspondent Ryan Chilcote reports from Davos, Switzerland. RYAN CHILCOTE: High in the Alps and 10 months away

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JUDY WOODRUFF: It’s been an awful summer in Australia, with extreme weather and terrible consequences. Thunderstorms and hail have been pelting eastern sections of the country, but strong winds have also created dust storms. Drought conditions and the bushfires remain a major problem. This fire season is hardly over. Miles O’Brien has been reporting from

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Imagine that aliens landed and gifted us a clean, limitless energy source. And instead of killing each other over this technology, we decided to immediately transform the world into a carbon-free society. [animation shows closing drilling rigs, oil refineries, and coal and natural gas plants.] This wonderous source would power our homes, industries, cars and

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Say you’re looking to buy a car. How do you pick the best car for the planet? There’s already a lot to consider when choosing a new ride, and factoring in climate change makes it even trickier. Well we’re here to guide you through it… even if we can’t come to the dealership with you.

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Think about the place you grew up as a kid. You probably knew the best shortcut to your friend’s house, which tree limbs you could shake to free the juiciest fruit, or how the sky looked just before the streetlights would beckon you home. Your neighborhood was your kingdom — and you knew how to

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Sure black holes are awesome, but how about black holes being captured by the screaming vortex of a quasar, where they merge and grow like some monstrous version of a solar system. This insane hypothesis is getting closer to reality, at least according to the papers in today’s Space Time Journal club. In September 2015

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In the 1700s, as Great Britain was ramping up its manufacturing, it realized it was sitting on a seemingly endless supply of cheap energy that burned better than trees: Coal. All this black stuff in the ground was a game-changer, kicking off a new age called the Industrial Revolution. You may have heard of it.

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Have you ever wondered why you live on a beautiful, blue, watery planet, and not a frozen ball of ice? That’s exactly what the French scientist Joseph Fourier wondered almost 200 years ago. He calculated Earth was far enough away from the Sun that it should be much colder. Fourier noted while sunlight can shine

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