Invasive species can wreak havoc on local ecosystems. Cleaning up that biological wreckage comes at a big price.
These invaders, often thrust into new environments unintentionally (or intentionally, to combat pests) by humans, can transmit new diseases, devastate crops and eat away at crucial infrastructure. From 1970 to 2017, such invasions cost the global economy at least $1.28 trillion in damages and in efforts to control them, researchers report March 31 in Nature. As the globe becomes increasingly interconnected and invasive species take over new habitats, that cost grows.
“For decades, researchers have been evaluating the significant impacts of