Portal:Environment
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The Environment Portal 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.
Selected article There are some non-technical barriers to the widespread use of renewables, and it is often public policy and political leadership that drive the widespread acceptance of renewable energy technologies. Some 85 countries now have targets for their own renewable energy futures, and have enacted wide-ranging public policies to promote renewables. Climate change concerns are driving increasing growth in the renewable energy industries. Leading renewable energy companies include First Solar, Gamesa, GE Energy, Q-Cells, Sharp Solar, Siemens, SunOpta, Suntech, and Vestas. Did you know...
Selected biography Current eventsSelected picture Radioactive contamination is the uncontrolled distribution of radioactive material in a given environment. It is typically the result of a spill or accident during the production or use of radionuclides (radioisotopes). Contamination may occur from radioactive gases, liquids or particles. For example, if a radionuclide used in nuclear medicine is accidentally spilled, the material could be spread by people as they walk around. Radioactive contamination may also be an inevitable result of certain processes, such as the release of radioactive xenon in nuclear fuel reprocessing. Selected organizationGreenpeace, originally known as the Greenpeace Foundation, is an international environmental organization founded in Vancouver, British Columbia, Canada in 1971. It is best known for its campaigns against nuclear weapons and campaigning against whaling. In later years, the focus of the organization turned to other environmental issues, including bottom trawling, global warming, ancient forest destruction, nuclear power, and genetic engineering. Greenpeace uses direct action, lobbying and research to achieve its goals. Greenpeace has national and regional offices in 46 countries worldwide, all of which are affiliated to the Amsterdam-based Greenpeace International. The global organization receives its income through the individual contributions of an estimated 3 million financial supporters, as well as from grants from charitable foundations, but does not accept funding from governments or corporations. It is often the subject of criticism and ridicule for supposedly over-the-top protesting. On its official website, Greenpeace defines its mission as the following:
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