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Over the past forty years, China planted billions of trees as part of its fight against expanding deserts, mostly in its north.

在过去的四十年，中国种植了数十亿的树木来作为主要遏制北方沙漠延伸的举措之一。

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After about five years, cacao trees start producing large fruits called pods, which grow near the trunk of the tree.

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Over the years, an agricultural adviser named Tony Rinaudo has helped people in the Sahel learn about the value and care of trees.

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They found that over a period of six years, planting three rows of trees reduced total dust and ammonia by more than half.

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He used to come here as a child 30 years ago and remembers mountains full of trees and grazing deer.

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The Lord's Acre appears to have remained an orchard and kitchen garden to the castle's occupants for around 350 years, and many of the fruit trees there date from between 1300 and 1600.

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Within 15 years, upward of half a million birch trees have replanted on their own.

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