Invasive species costly, study finds

by Jeff Helsdon | June 8, 2021
Close up image of a mosquito on human skin.

A multi-national study found the global cost of invasive species between 1970 and 2017 was $1.288 trillion US.

Over the same period, the authors pegged Canada’s cost at $22.8 billion.

The three species which caused the most damage were, in order, mosquitoes, rats, and cats.

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