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The smog in China made NASA scientists unable to sit still.
From the perspective of space, NASA scientists tell everyone what is smog? Why is China's haze so serious? And the history of pollution in the United States, solutions, status quo, etc.
3 minutes, enough to make rumors not break.
Http://v.ifeng.com/news/society/201612/01da91ba-a6af-42f1-ba28-3a916d9a832e.shtml
Since this video was released in March, it has played only 6.6 million. Even if we live in a sturdy country, we don't know about it.
Faced with this status quo, we can only rescue everyone from our actions.
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