Alien species threaten food supply, public health and cost USD 423bn

Non-native species ­ displaced either by global trade and travel or by climate change ­ pose “a severe global threat” to local biodiversity, food security as well as public health, new report finds.
Photo: Jens Dresling/Ritzau Scanpix
Photo: Jens Dresling/Ritzau Scanpix
By Liza Tetley / Bloomberg

This “underappreciated, underestimated, and often unacknowledged” threat from invasive alien species imposes a global economic cost of more than USD 423bn annually in 2019 and plays a key role in the majority of plant and animal extinctions, according to a report from the Intergovernmental Platform on Biodiversity and Ecosystem Services published Monday.

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