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Two out of five wild plants are threatened with extinction. Today people are finding remarkable ways to help them, and so make our world a little greener and a little wilder. (BBC iPlayer)
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Photo © BBC
![The Green Planet - Human Worlds - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/388/166388920_71692f.jpg)
Photo © BBC
![The Green Planet - Human Worlds - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/388/166388921_beb50c.jpg)
Two out of five wild plants are threatened with extinction. Today people are finding remarkable ways to help them, and so make our world a little greener and a little wilder. (BBC iPlayer)
Photo © BBC
Photo © BBC