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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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Attribution of recent climate change
Climate change refers to the change of Earth's global climate or in regional climates over time. These changes can be caused by processes internal to the Earth, external forces (e.g. variations in sunlight intensity) or, more recently, human activities.

In recent usage, especially in the context of environmental policy, the term "climate change" often refers only to changes in modern climate, including the rise in average surface temperature known as global warming. In some cases, the term is also used with a presumption of human causation, as in the United Nations Framework Convention on Climate Change (UNFCCC). The UNFCCC uses "climate variability" for non-human caused variations.

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Incandescent light bulb

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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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IUCN logo.svg

The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable".

Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice, and through building partnerships. The organization is best known to the wider public for compiling and publishing the IUCN Red List of Threatened Species, which assesses the conservation status of species worldwide. Read more...

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World population density map.PNG
Credit: Roke
Map of countries by population density.

Overpopulation is one of the reasons given for environmental impact as given by Paul R. Ehrlich's formula I = P x A x T where I is the impact, P is population A is affluence and T is technology. (See also:List of countries by population density.)

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

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