Invasive alien species are a major global problem causing substantial environmental and economic damage. This study explored the costs associated with such species, using the InvaCost database, to quantify the level of damage and of mitigation measures. The researchers report that between 1960 and 2020 invasive alien species caused over US$1 130.6 billion (€1 trillion) in damage worldwide, with management expenditure ten times lower, and preventative management representing a small fraction of this outlay. Click here to read more