Portal:Environment

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Welcome to the Environment Portal
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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...
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Selected article

Three Gorges Dam on the Yangtze River, China
The Three Gorges Dam is a hydroelectric dam that spans the Yangtze River by the town of Sandouping, located in the Yiling District of Yichang, in Hubei province, China. The Three Gorges Dam is the world’s largest capacity hydroelectric power station with a total generating capacity of 18,200 MW.

The dam body was completed in 2006. Except for a ship lift, the originally planned components of the project were completed on October 30, 2008, when the 26th turbine in the shore plant began commercial operation. Each turbine has a capacity of 700  MW. Six additional turbines in the underground power plant are not expected to become fully operational until 2012. Coupling the dam's thirty-two main turbines with two smaller generators (50 MW each) to power the plant itself, the total electric generating capacity of the dam will eventually reach 22,500 MW.

As well as producing electricity, the dam increases the Yangtze River's shipping capacity, and reduces the potential for floods downstream by providing flood storage space. The Chinese government regards the project as a historic engineering, social and economic success, with the design of state-of-the-art large turbines, and a move toward limiting greenhouse gas emissions. However, the dam flooded archaeological and cultural sites and displaced some 1.3 million people, and is causing significant ecological changes, including an increased risk of landslides. The dam has been a controversial topic both in China and abroad.

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

David Suzuki is a Canadian science broadcaster and environmental activist. Since the mid 1970s, Suzuki has become known for his TV and radio series and books about nature and the environment. He is best known as host of the popular and long-running CBC Television science magazine, The Nature of Things, seen in syndication in over 40 nations. He is well known for criticizing governments for their lack of actions to protect the environment.

Selected picture

Seawifs global biosphere.jpg
Credit: SeaWiFS Project, NASA/Goddard Space Flight Center and ORBIMAGE.

A false-color composite of global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. The picture shows the activity of photosynthesizing organisms in the biosphere. Many of these are used for ecosystem services which are natural processes relied upon by humans.

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

John Fitzgerald Kennedy
The supreme reality of our time is...the vulnerability of our planet

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Natural environment
Acid rain • Biodiversity • Climate change • Conservation • Deforestation • Desertification • Ecosystem • Environmental economics • Environmental law • Environmental policy • Environmental science • Environmentalism • Environmental technology • Global warming • Greenhouse gas • Green Politics • Lists (Books, Dates, Issues) • Ozone depletion • Recycling • Renewable energy • Soil retrogression and degradation • Sustainable development • Waste management A sunflower.
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Environment

Conservation • Environmentalism • Environmental awareness days • Environmental economics • Environmental media • Environmental history • Environmental humanities • Environmental law • Environmental indices • Environmental issues with population • Environmental science • Environmental social science • Environmental songs • Environmental topics • Environmental technology • Environment by country • Human overpopulation • Pollution • Renewable energy • Sustainability • Waste management

The Earth as seen from Apollo 17.
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WikiProjects

Agriculture • Climate change • Disaster management • Ecology • Energy • Energy development • Environment • Forestry • International development • Protected areas • Superfunds • Systems • Urban studies and planning • WaterSanitation

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Environment portal on Wikinews     Environment on Wikiquote     Environment on Wikibooks     Environment category on Wikisource     Environment category on Wikicommons     Environment on Wiktionary     Environment on Wikiversity
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Environment Portal
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