November 28, 2023

nvasive alien species are travelling world wide at “unprecedented charges” due to people, threatening native crops and animals with extinction whereas damaging human well being and livelihoods, scientists have warned.

Their price to the world economic system is estimated to be no less than 423 billion {dollars} (£336 billion) a yr, having quadrupled each decade since 1970, although this has been described by the authors as “an enormous underestimate” and “the tip of an iceberg”.

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