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Portal:Environment

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Welcome to the Environment Portal
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Introduction

A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale from microscopic to global in extent. It can also be subdivided according to its attributes. Examples include the marine environment, the atmospheric environment and the terrestrial environment. The number of biophysical environments is countless, given that each living organism has its own environment.

The term environment can refer to a singular global environment in relation to humanity, or a local biophysical environment, e.g. the UK's Environment Agency.

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Pied Currawong, an invasive species in Australia
Invasive species are widespread non-indigenous species. The introduction of these non-indigenous species can be accidental or intentional. It can be damaging to the local ecosystem as invasive species compete resources with local species. Most of the time the non-native species cannot survive in the new environment and died out. However, there is a chance that they managed to survive and no natural predator in the new environment. This can wipe out local species as the population of the invasive species increases, thus negatively affecting biodiversity.

Scientists propose several mechanisms to explain invasive species, including species-based mechanisms and ecosystem-based mechanisms. It is most likely a combination of several mechanisms that cause an invasive situation to occur, since most introduced plants, biotic and animals do not become invasive.

Did you know...

  • ... that rivers have been classified by many criteria, including their topography, their biotic status and their relevance to white water rafting and canoeing activities?

Current events

News
    • October 10: Scientists describe how 'upside-down rivers' of warm water break Antarctica's ice shelf
    • October 3: Voracious fish defend coral reefs against warming, say scientists
    • September 6: Scientists report skyrocketing phytoplankton population in aftermath of Kīlauea eruption
    • August 22: World leaders call to address Amazon rainforest fires at G7
...Environmental news at Wikinews

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Amory Lovins
Amory Bloch Lovins (November 13, 1947 - ) is Chairman and Chief Scientist of the Rocky Mountain Institute, a MacArthur Fellowship recipient (1993), and author and co-author of many books on renewable energy and energy efficiency.

Lovins has worked professionally as an environmentalist and an advocate for a "soft energy path" for the United States and other nations. He has promoted energy-use and energy-production concepts based on conservation, efficiency, the use of renewable sources of energy, and on generation of energy at or near the site where the energy is actually used.

Lovins has provided expert testimony in eight countries and more than 20 US states, briefed 19 heads of state, and published 29 books (including Winning the Oil Endgame, Factor Four with Hunter Lovins and Ernst Ulrich von Weizsäcker, and Natural Capitalism with Hunter Lovins and Paul Hawken).

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NEV-BlueZENN-RSFQ0244.JPG
Credit: Leonard G

ZENN (Zero Emission, No Noise) is a 2-seated car that runs solely on battery. It has a range of up to 60 km and does not exceed 40 km/h. The fuel economy is few cents per kilometer and the MSRP is $12,000.

Although the company is headquartered in Canada and the car manufactured in Canada, the vehicle was first introduced in United States because at the time of vehicle's design phrase, Canadian laws prevents this car to be driven on the roads. Since 2000, British Columbia has allowed ZENN cars on its roads.

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The Nature Conservancy is a US charitable environmental organization that works to preserve the lands and waters on which all life depends. Founded in 1951, The Nature Conservancy works in more than 30 countries. The Conservancy has over one million members, and has protected more than 119 million acres of land and 5,000 miles of rivers worldwide. The Nature Conservancy also operates more than 100 marine conservation projects globally.

The Nature Conservancy rates as one of the most trusted national organizations in Harris Interactive polls every year since 2005. Forbes magazine rated The Nature Conservancy's fundraising efficiency at 88% in its 2005 survey of the largest U.S. charities.

The organization was criticized for being too close to business, questionable resale of lands, its position on animal rights, and the conservation of land, plants and animals restricts the ability for farmers to do so responsibly.

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Development that meets the needs of the present without compromising the ability of future generations to meet their own needs
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