Environmental impact is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
The I=PAT equation, Environmental impact (I) or degradation is caused by the combination of an already very large and increasing Human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource depleting and polluting technology (T).
The Human population on Earth is expanding rapidly which goes hand in hand with the degradation of the environment at large measures. Humanity’s appetite for needs is disarranging the environment‘s natural equilibrium.
Most experts agree that Human beings have accelerated the rate of species extinction, perhaps 100 to 1000 times the normal background rate of extinction. Without Human interference the biodiversity of the Earth would continue to grow at an exponential rate.