Portal:Environment source: en.wikipedia.org/wiki/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.

Selected article

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 the concept of reduce, re-use, and recycle as three equal options, but they are instead meant to be a hierarchy, in order of importance?

Current events

Selected biography

James B. Harkin, also known as the Father of National Parks, was a Canadian-born journalist turned bureaucrat with a passion for conservation but also widely renowned for his commodification of the Canadian landscape. Harkin was able to acquire an appointment to be the first commissioner of the Dominion Parks Branch in 1911. During his career, Harkin oversaw the establishment of national parks that include Elk Island, Mount Revelstoke, Point Pelee, Kootenay, Wood Buffalo, Prince Albert, Riding Mountain, Georgian Bay Islands and Cape Breton Highlands. The creation of the Wood Buffalo National Park sparked huge debate with local indigenous groups and the rippling effects of that debate are still being dealt with today.

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Formerly known as the World Commission on Environment and Development (WCED), the mission of the Brundtland Commission is to unite countries to pursue sustainable development together. The Chairperson of the Commission, Gro Harlem Brundtland, was appointed by United Nations Secretary-General Javier Pérez de Cuéllar in December 1983. At the time, the UN General Assembly realized that there was a heavy deterioration of the human environment and natural resources. To rally countries to work and pursue sustainable development together, the UN decided to establish the Brundtland Commission. Gro Harlem Brundtland was the former Prime Minister of Norway and was chosen due to her strong background in the sciences and public health. The Brundtland Commission officially dissolved in December 1987 after releasing Our Common Future, also known as the Brundtland Report, in October 1987. The document popularized (and defined) the term

"Sustainable Development". Our Common Future won the University of Louisville Grawemeyer Award in 1991. The organization Center for Our Common Future was started in April 1988 to take the place of the Commission. Read more...

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Atomic bombing of Nagasaki on August 9, 1945.
Credit: United States military

The detonation of nuclear weapons leads to the release of radioactive material into the environment. This radioactive material affects human health and the natural environment.

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Bill Clinton
The science is clear and compelling. We humans are changing the global climate.

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