The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity.
The concept of the natural environment can be distinguished as components:
In contrast to the natural environment is the built environment. Built environments are where humans have fundamentally transformed landscapes such as urban settings and agricultural land conversion, the natural environment is greatly changed into a simplified human environment. Even acts which seem less extreme, such as building a mud hut or a photovoltaic system in the desert, the modified environment becomes an artificial one. Though many animals build things to provide a better environment for themselves, they are not human, hence beaver dams, and the works of mound-building termites, are thought of as natural. (Full article...)
The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity.
The concept of the natural environment can be distinguished as components:
In contrast to the natural environment is the built environment. Built environments are where humans have fundamentally transformed landscapes such as urban settings and agricultural land conversion, the natural environment is greatly changed into a simplified human environment. Even acts which seem less extreme, such as building a mud hut or a photovoltaic system in the desert, the modified environment becomes an artificial one. Though many animals build things to provide a better environment for themselves, they are not human, hence beaver dams, and the works of mound-building termites, are thought of as natural.
People cannot 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. The massive environmental changes of humanity in the Anthropocene have fundamentally effected all natural environments: including from climate change, biodiversity loss and pollution from plastic and other chemicals in the air and water. More precisely, we can consider the different aspects or components of an environment, and see that their degree of naturalness is not uniform. If, for instance, in an agricultural field, the mineralogic composition and the structure of its soil are similar to those of an undisturbed forest soil, but the structure is quite different. (Full article...)
According to the economic theory behind congestion pricing, the objective of this policy is to use the price mechanism to cover the social cost of an activity where users otherwise do not pay for the negative externalities they create (such as driving in a congested area during peak demand). By setting a price on an over-consumed product, congestion pricing encourages the redistribution of the demand in space or in time, leading to more efficient outcomes. (Full article...)
... that critics objected to Dangers of the Mail in the 1930s for government support of lewdness and in the 2000s for creating a hostile work environment?
... that clothing physiology is the study of how clothing interacts with the human body and the environment?
... that in a 2014 study viriditoxin was able to inhibit prostate cancer cells' growth in a lab environment?
... that Ellen Bernstein was called the "birthmother of Jewish environmentalism"?
Image 3Global oceanic and terrestrial phototroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary production potential and not an actual estimate of it. (from Ecosystem)
Image 4Few creatures make the ice shelves of Antarctica their habitat, but water beneath the ice can provide habitat for multiple species. Animals such as penguins have adapted to live in very cold conditions. (from Habitat)
Image 13Compartments established by C&SF projects that separated the historic Everglades into Water Conservation Areas and the Everglades Agricultural Area. One-fourth of the original Everglades is preserved in Everglades National Park. (from Restoration of the Everglades)
Image 14Wetland habitat types in Borneo (from Habitat)
Image 15Rachel Carson published her groundbreaking novel, Silent Spring, in 1962, bringing the study of environmental science to the forefront of society. (from Environmental science)
Image 16Blue Marble composite images generated by NASA in 2001 (left) and 2002 (right) (from Environmental science)
Image 19Sequence of a decomposing pig carcass over time (from Ecosystem)
Image 20Biodiversity of a coral reef. Corals adapt and modify their environment by forming calcium carbonate skeletons. This provides growing conditions for future generations and forms a habitat for many other species. (from Environmental science)
Image 22Loch Lomond in Scotland forms a relatively isolated ecosystem. The fish community of this lake has remained stable over a long period until a number of introductions in the 1970s restructured its food web. (from Ecosystem)
Image 25Dense mass of white crabs at a hydrothermal vent, with stalked barnacles on right (from Habitat)
Image 26Climbing ferns overtake cypress trees in the Everglades. The ferns act as "fire ladders" that can destroy trees that would otherwise survive fires. (from Restoration of the Everglades)
Image 38View of Earth, taken in 1972 by the Apollo 17 crew. Approximately 71% of Earth's surface (an area of some 361 million square kilometers) consists of ocean (from Ecoregion)
Image 39Environmental science examines the effects of humans on nature, such as the Glen Canyon Dam in the United States (from Environmental science)
Image 43Cattails indicate the presence of phosphorus in the water. Cattails are an invasive species; they crowd out sawgrass and grow too thick to allow nesting for birds and alligators. (from Restoration of the Everglades)
Image 44A false color composite of the greater Boston area, created using remote sensing technology, reveals otherwise not visible characteristics about the land cover and the health of the surrounding ecosystems. (from Environmental science)
Image 46A team of British researchers found a hole in the ozone layer forming over Antarctica, the discovery of which would later influence the Montreal Protocol in 1987. (from Environmental science)
Image 48The Paris Agreement (formerly the Kyoto Protocol) is adopted in 2016. Nearly every country in the United Nations has signed the treaty, which aims to reduce greenhouse gas emissions. (from Environmental science)
Image 54Proportion of forest area by forest area density class and global ecological zone, 2015, from Food and Agriculture Organization publication The State of the World's Forests 2020. Forests, biodiversity and people – In brief (from Ecoregion)
Image 55Aerial view of stormwater treatment areas in the northern Everglades bordered by sugarcane fields on the right (from Restoration of the Everglades)
... that the average United States citizen consumes 119pg (10−12 g) of dioxin per day?
... that Liberian lawyer Alfred Brownell won the "Green Nobel" prize for his efforts to protect more than 500,000 acres (2,000 km2) of tropical forest land?
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