“Warning to humanity”: one third of threatened tree species

“Warning to humanity”: one third of threatened tree species

“Warning to humanity”: one third of threatened tree species

un third of the tree species, or 17,500 varieties, are at risk of extinction. And “if we don’t act now, it will impact humanity, our economies. Ecologically, this will have a catastrophic impact on the planet. This warning cry comes from scientists from the International Union for Conservation of Nature (IUCN) and was spotted by The Guardian.

“Last year we published the State of the World’s Trees report, in which we showed that at least 17,500 tree species, or about a third of the world’s 60,000 tree species, are threatened with extinction. Now we want to highlight why. which is feared that so many tree species are dying out, “said Malin Rivers, lead author of the scientific paper. In addition to the economic aspect of this disappearance, the article reminding that in some countries woodworking provides up to 25% of the income of some families, there is its cultural and spiritual dimension, like the baobabs in Madagascar. The extinction of so many trees would be a disaster for the planet. Half of the plant and animal species could follow, as trees are their natural habitat.

An ally against global warming

Not to mention that the tree is a formidable ally in the fight against global warming. In addition to hosting shady areas, forests are also important carbon sinks. There is, however, something new in this article: “We show that diversified forests store more carbon than monocultures. This is true for many ecological functions, not only for carbon sequestration, but also for providing habitat for animals, stabilizing soils, resisting pests and diseases, resisting storms and bad weather. By losing the diversity of trees, we will also lose the diversity of all organisms: birds, animals, fungi, microorganisms, insects. “

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And whoever says tree threatened, says fauna threatened. Because yes, a huge amount of plants and animals depend on forests. “When we look at the risk of extinction for mammals or birds, this is at the root of habitat loss and habitat loss is often the loss of trees,” she said. “If we don’t take care of the trees, there is no way we can take care of all the other life forms out there. “

More than warning, these scientists are now calling for action and for “governments to take their responsibilities and for there to be a common reflection on biodiversity and climate change”.

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