Invasive species have racked up $1.29 trillion in global economic damages between 1970 and 2017, a new study finds. The research, published today in Nature, is the first complete tally of economic costs from biological invasions of all species. Animals, plants and pathogens introduced in regions they haven't previously occupied are hitting agriculture, tourism, public health and other sectors. The work shows how invasive species damage crop yields, critical national infrastructure and divert billions of taxpayer dollars annually. Lead author Christophe Diagne, a professor at University Paris-Saclay, said in a press release that he and his colleagues created the catalog of economic costs to help "clarify the importance of effective management policies going forward."
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