An Invasive Mosquito Threatens Catastrophe in Africa A malaria-carrying species that thrives in urban areas and resists all insecticides is causing outbreaks in places that have rarely faced the disease.

How Invasive Plants Caused the Maui Fires to Rage A sweeping series of plantation closures in Hawaii allowed highly flammable nonnative grasses to spread on idled lands, providing the fuel for huge blazes.