An economic problem: invasive alien species cause damage worth at least EUR 12 billion every year in Europe, through hazards to human health (e.g. the Asian hornet and tiger mosquito, whose effects can be fatal), damage to infrastructure (e.g.
Majanduslik probleem: invasiivsete võõrliikide tekitatud kahju Euroopas ulatub vähemalt 12 miljardi euroni aastas.