Environment | The Canadian Encyclopedia

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  • Article

    Ducks Unlimited Canada

     Concern over declining waterfowl populations in the early decades of the 20th century reached a crisis during the Prairie drought of the 1930s.

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  • Article

    Ecosystem

        A limited space within which living beings interact with nonliving matter at a high level of interdependence to form an environmental unit is called an ecosystem.

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  • Article

    Endangered Animals in Canada

    Many animals in Canada face the risk of extinction. Animals are put at risk for several reasons, including: climate change, the loss of forest and grassland to cities and agriculture, hunting, fishing, and the pollution of lakes and rivers. As of 2021, 554 animal species are at risk in Canada, according to the Committee on the Status of Endangered Wildlife in Canada. In addition, 18 are extirpated and 18 extinct. The committee’s definition of a wildlife species includes taxonomic categories as well as geographically distinct populations. For example, the beluga whale (Delphinapterus leucas) is included in the list of at risk animal species six times, as there are six different populations facing different threats to their survival. (See also Endangered Plants in Canada.)

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  • Article

    Endangered Plants in Canada

    A species is endangered if there are threats to its survival. Plants are put at risk for several reasons, including: climate change and the loss of natural habitat to cities, agriculture and industry. In Canada, these activities threaten entire natural ecosystems, such as older forests and Prairie grasslands. As of 2021, 250 plant species are at risk in Canada, according to the Committee on the Status of Endangered Wildlife in Canada. In addition, four are extirpated and one is extinct. The committee’s definition of a wildlife species includes taxonomic categories as well as geographically distinct populations. For example, the bent spike-rush (Eleocharis geniculate) is included on the list of at risk plant species twice, as there are two different populations, one in British Columbia and one in Ontario, facing different threats to their survival. (See also Endangered Animals in Canada.)

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  • Macleans

    Endangered Species Protection

    Grant Fahlman, 51, has lived his whole life on the farm 25 km southeast of Regina where his family settled when they came from Russia in 1889, and this year was the first in his memory that no burrowing owls raised their broods in his pasture.This article was originally published in Maclean's Magazine on December 20, 1999

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  • Article

    Energy

    The term "energy" is often used interchangeably with the term "power," but incorrectly so. Energy is defined as the capacity to do work and is measured in joules (J) or watt hours (1 Wh = 3600 J).

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  • Macleans

    Energy Alternatives Getting Insufficient Government Support

    CANADIANS ARE now committed to the reduction of greenhouse gas emissions under the Kyoto Protocol, even though Ottawa may not have a well-developed plan. But Dean Scammell does, and he's a good six years ahead of the government. In 1999, Scammell started building his 2,400-sq.This article was originally published in Maclean's Magazine on February 28, 2005

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  • Article

    Energy in Society

    Energy plays a unique and critical role in the world; no activity of any kind (no "work") can take place without the movement or conversion of energy.

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  • Article

    Environment

    ​The environment is the physical, social and psychological milieu in which humans exist. 

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  • Article

    Environmental Agencies

    Environmental problems may require action by the environmental agencies of governments at 5 levels: international, national, provincial, municipal and Aboriginal.

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  • Article

    Environmental Movement in Canada

    The environmental movement seeks to protect the natural world and promote sustainable living. It had its beginnings in the conservation efforts of the early 1900s. During this time, conservationists aimed to slow the rapid depletion of Canadian resources in favour of more regulated management. Many scholars divide the evolution of the environmental movement into “waves.” These waves are periods in time easily characterized by certain themes. While the number of waves and their characterization may differ from scholar to scholar, they’re often defined as follows: The first wave focused on conservation; the second, pollution; the third, the professionalization of environmental groups; and the fourth, climate change.

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  • Article

    Environmental Governance

    Environmental governance is a term used to describe how decisions about the ENVIRONMENT are made and who makes such decisions. It is a broad term that includes the formal and informal institutional arrangements for resource and environment decision-making and management.

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  • Article

    Environmental Impact Assessment

    Environmental Impact Assessment An environmental impact assessment is a systematic analysis of the potential impacts of proposed development projects on the natural and human environment (seeSOCIAL IMPACT ASSESSMENT), for identifying measures to prevent or minimize impacts prior to major decisions being taken and project commitments made. Legislation Environmental impact assessment (EIA) originated in the United States under the National Environmental Policy Act of 1970 and is now among the most widely practiced ENVIRONMENTAL MANAGEMENT tools...

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  • Article

    Environmental Management

    Successful actions to protect the ENVIRONMENT and conserve natural RESOURCES constitute environmental management.

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  • Article

    Erosion

    Erosion caused in this case by an intense thunderstorm squall lifting the soil from the fields (photo by Arjen Verkaik, Skyart Productions).This view depicts the eroding badlands and alternating beds of sandstone and shale (photo by Cliff Wallis, courtesy Cottonwood Consultants Ltd.).One of the classic, and disastrous, examples of gravitational erosion (photo by Ken A. Meisner/Take Stock Inc).The prairie dry belt was unwisely opened for homesteading and was struck by successive droughts in the 1920s...

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