An environmental disaster or ecological disaster is defined as a catastrophic event regarding the natural environment that is due to human activity.[2] This point distinguishes environmental disasters from other disturbances such as natural disasters and intentional acts of war such as nuclear bombings.
Environmental disasters show how the impact of humans' alteration of the land has led to widespread and/or long-lasting consequences.[3] These disasters have included deaths of wildlife, humans and plants, or severe disruption of human life or health, possibly requiring migration.[4] Some environmental disasters are the trigger source of more expansive environmental conflicts, where effected groups try to socially confront the actors responsible for the disaster.