The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. ... This environment encompasses the interaction of all living species, climate, weather and natural resources

People seldom find absolutely natural environments on Earth, and naturalness usually varies in a continuum, from 100% natural in one extreme to 0% natural in the other. More precisely, we can consider the different aspects or components of an environment, and see that their degree of naturalness is not uniform.