Answer:
Human impact on the environment.
Explanation:
The theory according to which the collective actions of different human beings sometimes cause situations that are threatening to the environment is known as Human impact on the environment.
Human impact on the environment theory, also called anthropogenic impact on the environment theory, states that changes in biophysical in ecosystems and natural resources are caused, either directly or indirectly, by humans. Such changes in environments and ecosystems include the long-term rise in the average temperature of the earth's climate system, known as global warming, the environmental degradation or deterioration of the environment caused by the consumption of a resource faster than it can be replenished, as well as mass extinction and biodiversity loss.