Animal populations across the world shrunk by an average of 69% between 1970 and 2018, researchers found. The steep loss in biodiversity is caused mainly by human activity — and experts say we have limited time to fix it.
Not all animal populations dwindled, and some parts of the world saw more drastic changes than others. But experts say the steep loss of biodiversity is a stark and worrying sign of what's to come for the natural world.
According to the report's authors, the main cause of biodiversity loss is land-use changes driven by human activity, such as infrastructure development, energy production and deforestation.But the report suggests that climate change — which is already unleashing wide-ranging effects on plant and animal species globally — could become the leading cause of biodiversity loss if rising temperatures aren't limited to 1.5°C.
He said world leaders gathering at the U.N. Biodiversity Conference in Montreal in December should take major steps to reverse environmental damage. Solutions range from the conservation of mangroves to a cross-border barter system in Africa to the removal of migration barriers for freshwater fish, the report said.that humans have the opportunity to change how they do things to benefit nature.
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