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

Cyclone Catarina
A Tropical cyclone is a storm system characterized by a large low pressure center and numerous thunderstorms that produce strong winds and flooding rain. Tropical cyclones feed on heat released when moist air rises, resulting in condensation of water vapor contained in the moist air. They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters, European windstorms, and polar lows, leading to their classification as "warm core" storm systems. Studies have shown that global warming may have increased the sea surface temperatures, which intensify the frequency and intensity of tropical cyclone.

The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and their formation in Maritime Tropical air masses. The term "cyclone" refers to such storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on its location and strength, a tropical cyclone is referred to by many other names, such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, and simply cyclone.

Did you know...

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

Current events

News
    • 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
    • May 30: Ash and steam reported over Mount St. Helens
    • January 2: Gunman kills Burundi environment minister Emmanuel Niyonkuru
...Environmental news at Wikinews

Selected biography

Nobel Prize 2009-Press Conference KVA-30.jpg
Elinor Ostrom (August 7, 1933 – June 12, 2012), an American political economist, was awarded the 2009 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel for "her analysis of economic governance, especially the commons". She was the first, and to date, the only woman to win the prize in this category.

In 1973, she co-founded the Workshop in Political Theory and Policy Analysis at Indiana University. Examining the use of collective action, trust, and cooperation in the management of common pool resources, her approach to public policy, known as the institutional analysis and development (IAD) framework, has been considered sufficiently distinct to be thought of as a separate school of public choice theory.

Her most famous research focuses on how humans interact with ecosystems to maintain long-term sustainable resource yields. She conducted her field studies on the management of pasture by locals in Africa and irrigation systems management in villages of western Nepal. Her work has considered how societies have developed diverse institutional arrangements for managing natural resources and avoiding ecosystem collapse in many cases, even though some arrangements have failed to prevent resource exhaustion. Her work emphasized the multifaceted nature of human–ecosystem interaction and argues against any singular "panacea" for individual social-ecological system problems.

Selected picture

Ectopistes migratoriusMCN2P28CA.jpg
Credit: Orthogenetic Evolution in the Pigeons

The passenger pigeon was a species of pigeon that was once the most common bird in North America. It is estimated that there were as many as five billion passenger pigeons in the United States at the time Europeans colonized North America. They lived in enormous flocks, and during migration, one could see flocks of them a mile (1.6 km) wide and 300 miles (500 km) long, taking several days to pass and probably containing two billion birds. The species had not been common in the Pre-Columbian period, until the devastation of the American Indian population by European diseases.

Over the 19th century, the species went from being one of the most abundant birds in the world to extinction. At the time, passenger pigeons had one of the largest groups or flocks of any animal, second to only the desert locust.

Some decimation in numbers occurred as a result of loss of habitat, when the Europeans started settling further inland. However, the primary factor emerged when pigeon meat was commercialized as a cheap food for slaves and the poor in the 19th century, resulting in hunting on a massive scale. There was a slow decline in their numbers between about 1800 and 1870, followed by a catastrophic decline between 1870 and 1890, at the end of which they were rare and beyond the point of recovery. 'Martha', thought to be the world's last passenger pigeon, died on September 1, 1914 in Cincinnati.

Selected organization

The World Wide Fund for Nature is an international non-governmental organization for the conservation, research and restoration of the natural environment, formerly named the World Wildlife Fund, which remains its official name in the United States and Canada. It is the world's largest independent conservation organization with over 5 million supporters worldwide, working in more than 90 countries, supporting 15,000 conservation and environmental projects around the world. It is the world's largest independent conservation organization with over 5 million supporters worldwide, working in more than 90 countries, supporting around 1300 conservation and environmental projects around the world. It is a charity, with approximately 60% of its funding coming from voluntary donations by private individuals. 45% of the fund's income comes from the United States, the United Kingdom, and the Netherlands.

The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned with endangered species, pollution and climate change.

Selected quote

Al Gore
Many scientists are now warning that we are moving closer to several "tipping points" that could — within as little as 10 years — make it impossible for us to avoid irretrievable damage to the planet's habitability for human civilization.
Al Gore, giving a speech at NYU Law School in 2006
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