Nearly 30% of tree species in the wild are threatened with extinction, new report says

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Steve Lewis Stock | DigitalVision | Getty ImagesAlmost 30% of tree species in the wild are now at risk of extinction, with a wide range of factors responsible for their decline, according to analysis released Wednesday.Published by Botanic Gardens Conservation International, the State of the World's Trees report found that out of the planet's 58,497 recorded tree species, 17,510 — or 29.9% — were threatened.In addition, 4,099 are regarded as being "possibly threatened" while at least 142 species are now extinct in the wild, according to the report.The figure of 29.9% does not assume that "data deficient" species, or those that scientists don't have enough information on, are threatened. If all species in this category were deemed to be threatened, the percentage under threat of extinction would jump to 51.3%."Assuming that Data Deficient species are equally likely to be threatened as all other tree species, we can estimate that 38.1% of tree species are classified as threa
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