Portal:Environment

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Welcome to the Environment Portal
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Introduction

Land management has preserved the natural characteristics of Hopetoun Falls, Australia while allowing ample access for visitors.

The natural environment or natural world encompasses all biotic and abiotic 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...)

Land management has preserved the natural characteristics of Hopetoun Falls, Australia while allowing ample access for visitors.

The natural environment or natural world encompasses all biotic and abiotic 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,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: 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...)

North American beaver dam in Tierra del Fuego

An invasive species is an introduced species that harms its new environment. Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food web. Since the 20th century, invasive species have become serious economic, social, and environmental threats worldwide.

Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of invasion. For millennia, humans have served as both accidental and deliberate dispersal agents, beginning with their earliest migrations, accelerating in the Age of Discovery, and accelerating again with international trade. Notably invasive plant species include the kudzu vine, giant hogweed, Japanese knotweed, and yellow starthistle. Notably invasive animals include European rabbits, domestic cats, and carp. (Full article...)

List of selected articles

Did you know (auto-generated) - load new batch

  • ... that Ellen Bernstein was called the "birthmother of Jewish environmentalism"?
  • ... that at least 69 countries have "no net loss" environmental policies?
  • ... that environmental activist Nigel Savage created Hazon after googling "Jewish food movement" and receiving zero search results?
  • ... that the volcano Carachipampa is surrounded by a lake and a salt flat, and has a Mars-like environment?
  • ... that the destructible environment effects in The Incredible Hulk were so extensive that two additional artists were added during the game's development?
  • ... that upon its completion, the Gwinnett Environmental & Heritage Center had the largest sloped green roof in the United States?
  • ... 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 Flathead Lake Biological Station can detect invasive aquatic species in real-time using eDNA technology?

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Credit: Staecker

The diversion of the Amu Darya and Syr Darya rivers for irrigation has shrunk the Aral Sea dramatically. The sea's surface area shrank by approximately 60%, and its volume by 80%. In 1960, the Aral Sea was the world's fourth-largest lake, with an area of approximately 68,000 km² and a volume of 1100 km³; by 1998, it had dropped to 28,687 km², and eighth-largest. Over the same time period its salinity has increased from about 10 g/l to about 45 g/l. As of 2004, the Aral Sea's surface area was only 17,160 km², 25% of its original size, and still contracting.

Current events

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Porritt receiving an honorary degree from the University of Exeter in 2008

Sir Jonathon Espie Porritt, 2nd Baronet, CBE (born 6 July 1950) is a British environmentalist and writer. He is known for his advocacy of the Green Party of England and Wales. Porritt frequently contributes to magazines, newspapers and books, and appears on radio and television. (Full article...)

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The Ministry of Environment and Climate Change Strategy is a ministry of the government of British Columbia in Canada. The ministry is responsible for the effective protection, management and conservation of the province's natural resources. It is currently overseen by George Heyman. (Full article...)

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The following are images from various environment-related articles on Wikipedia.

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John James Audubon
A true conservationist is a man who knows that the world is not given by his fathers but borrowed from his children.

More did you know - show different entries

  • ...that chlorofluorocarbons (CFCs) can cause ozone depletion, and the ozone hole needs to take more than a decade to recover?
Incandescent light bulb
Incandescent light bulb

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