Environmental catastrophe

An environmental disaster or ecological disaster is a catastrophic event regarding the environment due to human activity. This distinguishes it from the concept of a natural disaster. It is also distinct from intentional acts of war such as nuclear bombings.

In this case, the impact of humans' alteration of the ecosystem has led to widespread and/or long-lasting consequences. It can include the deaths of animals (including humans) and plants, or severe disruption of human life, possibly requiring migration.

Environmental disasters can have an effect on agriculture, biodiversity, the economy and human health. The causes include pollution, depletion of natural resources, custom industrial activity or agriculture.

A 2013 report examined the relationship between disasters and poverty. It concludes that, without concerted action, there could be up to 325 million extremely poor people living in the 49 countries most exposed to the full range of natural hazards and climate extremes in 2040.

...
Wikipedia