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| The best articles from alearned.com, according to Hacker News. |
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| Change the ?site URL parameter to try it on any other website. Or click the domain shown after each post title. |
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| 2014 | | Countries build 9 mile wide tree wall across Africa to prevent Sahara advancing (alearned.com) |
| 54 points | 4 years ago with 13 comments |
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