Clear blue skies,emerald-green woods and refreshing creeks and rivers.From a wasteland to an eco-progress exemplar,Saihanba has been resurrected,providing a green lung for north China.The largest man-made forest in the world is also a testimony to the planners and planters who toiled for more than five decades to achieve the feat.The goal is to leave a bluer sky,greener mountains and clearer water for the future world.
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