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This team is building the world's biggest library of trees
07:28 - Source: CNN
Call to Earth 135 videos
gabon tree dna looking up
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This team is building the world's biggest library of trees
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How 'Living Seawalls' can help coastal communities
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Endangered snails bred in captivity are released into the wild
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'A symbol of hope': the endangered cockatoos thriving 2,000 miles from home
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Bursting the bubble on climate change
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Restoring a tropical island paradise
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Submarine that sucks plastic from the ocean tested in the US
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Why Kristine Tompkins is a rewilding pioneer
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Why Mexico City needs more bugs
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Protecting the land of the spirit bear
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Saving one of the world's most trafficked birds
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These photographers are working to protect the oceans
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Conservationists want humans and flying foxes to coexist
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Kitasu Bay
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This indigenous community created a marine refuge in Canada
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The conservationists guarding whales from ship strikes
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The UK zoo in the midst of a baby boom of rare species
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Conservationists are building ceramic nests to help endangered penguins
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Bamboo school cultivates green warriors
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Paula Kahumbu: Voice of the wild
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Sophie Green rhinos
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Hyperrealistic paintings of animals promote conservation
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