Before the featured portal process ceased in 2017, this had been designated as a featured portal.

Portal:Environment

From Wikipedia, the free encyclopedia
  Portal   WikiProject Environment   Talk page  

PleuroziumPiceaBorealForest.JPG


Welcome to the Environment Portal
(image link)

Environment

Devil's Punchbowl Waterfall, New Zealand.
The natural environment comprises all naturally occurring surroundings and conditions in which living things grow and interact on Earth. These include complete landscape units that function as natural systems without major human intervention, as well as plants, animals, rocks, and natural phenomena occurring within their boundaries. They also include non-local or universal natural resources that lack clear-cut boundaries, such as air, water and climate.

The concept of the natural environment can be distinguished by components:

As human population numbers increase and as humans continue to evolve, human activity modifies the natural environment at a rapidly increasing rate, producing what is referred to as the built environment. The potential of the natural environment to sustain these anthropogenic changes while continuing to function as an ecosystem is an issue of major worldwide concern. Key environmental areas of interest include climate change, water supply and waste water, air pollution, waste management and hazardous waste, and land use issues such as deforestation, desertification, and urban sprawl.

More about the environment...

Selected article

Solar panel to capture energy from the sun
Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.

Solar power technologies provide electrical generation by means of heat engines or photovoltaics. Once converted its uses are only limited by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.

Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic panels, solar thermal collectors, with electrical or mechanical equipment, to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.

Did you know...

Chemical structure of carbon dioxide

Current events

News
    • November 4: U.S. government report says climate change is human-made
    • October 5: Researchers find preserving spotted owl habitat may not require a tradeoff with wildfire risk after all
    • July 7: India Supreme Court overrules High Court: rivers Yamuna, Ganga no longer living entities
    • July 7: Volvo announces all new car models electric or hybrid from 2019
...Environmental news at Wikinews

Selected biography

John Muir
John Muir (April 21, 1838 – December 24, 1914) was one of the first modern preservationists. His letters, essays, and books telling of his adventures in nature, and wildlife, especially in the Sierra Nevada Mountains of California, were read by millions and are still popular today. His direct activism helped to save the Yosemite Valley and other wilderness areas. The Sierra Club, which he founded, is now one of the most important conservation organizations in the United States. His writings and philosophy strongly influenced the formation of the modern environmental movement.

Selected picture

Moofushi bleached corals.JPG
Credit: Bruno de Giusti

Coral bleaching refers to the loss of color of corals due to stress-induced expulsion of symbiotic unicellular algae. It can be caused by sedimentation, change in pH, change in water temperature, or pathogen infections. When coral bleaching occurs, the productivity of the coral reefs are lost.

Selected organization

The Brundtland Commission, formally the World Commission on Environment and Development (WCED), known by the name of its Chair Gro Harlem Brundtland, was convened by the United Nations in 1983. The commission was created to address growing concern "about the accelerating deterioration of the human environment and natural resources and the consequences of that deterioration for economic and social development." In establishing the commission, the UN General Assembly recognized that environmental problems were global in nature and determined that it was in the common interest of all nations to establish policies for sustainable development.

The Report of the Brundtland Commission, Our Common Future, was published in 1987. It was welcomed by the General Assembly in its resolution 42/187. The report deals with sustainable development and the change of politics needed for achieving that. The definition of this term in the report is quite well known and often cited:

"Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs. It contains within it two key concepts:
  • the concept of 'needs', in particular the essential needs of the world's poor, to which overriding priority should be given; and
  • the idea of limitations imposed by the state of technology and social organization on the environment's ability to meet present and future needs."

Selected quote

Franklin Roosevelt
A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people.
More...

Main topics

Things you can do

  • This list is transcluded from the tasks list page. To edit the list, click here

Here are some tasks awaiting attention:

Related categories

Related articles

Related portals

WikiProjects

Associated Wikimedia

Environment portal on Wikinews     Environment on Wikiquote     Environment on Wikibooks     Environment category on Wikisource     Environment category on Wikicommons     Environment on Wiktionary     Environment on Wikiversity
News Quotations Manuals Texts Images Definitions Learning
Retrieved from "https://en.wikipedia.org/w/index.php?title=Portal:Environment&oldid=737260534"
This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Portal:Environment
This page is based on the copyrighted Wikipedia article "Portal:Environment"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA