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...)
Elk at the Opal Terrace at Mammoth Hot Springs, Yellowstone National Park
The Leopold Report, officially known as Wildlife Management in the National Parks, is a 1963 paper composed of a series of ecosystem management recommendations that were presented by the Special Advisory Board on Wildlife Management to United States Secretary of the InteriorStewart Udall. Named for its chairman and principal author, zoologist and conservationist A. Starker Leopold, the report proved influential for future preservation mandates.
After several years of public controversy regarding the forced reduction of the elk population in Yellowstone National Park, Udall appointed an advisory board to collect scientific data to inform future wildlife management of the national parks. The committee observed that culling programs at other national parks had been ineffective, and recommended different management of Yellowstone's elk population. In addressing the goals, policies, and methods of managing wildlife in the parks, the report suggested that in addition to protection, wildlife populations should be managed and regulated to prevent habitat degradation. Touching upon predator control, fire ecology, and other issues, the report suggested that the National Park Service (NPS) hire scientists to manage the parks using current scientific research. (Full article...)
... that Mycobacterium bacterial species constantly remodel their cell wall layers to survive in stressful environments and avoid their host's immune defenses?
... that in a 2014 study viriditoxin was able to inhibit prostate cancer cells' growth in a lab environment?
... that Salar de Pajonales in Chile has been used as an analogue for environments on Mars?
The Scottish Environment Protection Agency (SEPA; Scottish Gaelic: Buidheann Dìon Àrainneachd na h-Alba) is Scotland's environmental regulator and national flood forecasting, flood warning and strategic flood risk management authority. Its main role is to protect and improve Scotland's environment. SEPA does this by helping business and industry to understand their environmental responsibilities, enabling customers to comply with legislation and good practice and to realise the economic benefits of good environmental practice. One of the ways SEPA does this is through the NetRegs environmental guidance service. It protects communities by regulating activities that can cause harmful pollution and by monitoring the quality of Scotland's air, land and water. The regulations it implements also cover the storage, transport and disposal of radioactive materials.
Image 2A 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 3An Antarctic rock split apart to show endolithic lifeforms showing as a green layer a few millimeters thick (from Habitat)
Image 11Compartments 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 13Loch 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 19Aerial view of stormwater treatment areas in the northern Everglades bordered by sugarcane fields on the right (from Restoration of the Everglades)
Image 20A 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 21Climbing 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 22Proportion 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 23Biodiversity 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 24Terrestrial Ecoregions of the World (Olson et al. 2001, BioScience) (from Ecoregion)
Image 35Sequence of a decomposing pig carcass over time (from Ecosystem)
Image 36Cattails 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 42Rachel Carson published her groundbreaking novel, Silent Spring, in 1962, bringing the study of environmental science to the forefront of society. (from Environmental science)
Image 43View 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 45Few 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 49The 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 53Planned water recovery and storage implementation using CERP strategies (from Restoration of the Everglades)
Image 54Global 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)
.jpg)
.jpg)
.jpg)
_peeking_from_a_leaf_hole_of_an_Alnus_nepalensis_tree_(cropped).jpg)
.jpg)
_18.jpg)
.jpg)
.jpg)
.JPG)
