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  • Article

    Climate Change (Plain-Language Summary)

    Climate change happens when weather patterns change. This has happened a lot in the past and will continue to happen. It is a normal phenomenon. For example, the last cold period peaked approximately 18,000 years ago. This era is known as the Ice Age. After that, Earth’s climate began to warm again. Since the Industrial Revolution climate change has been happening very quickly. This period is known as “global warming.” There is one big difference between this period and the other periods of climate change that came before. The difference is that human beings have caused global warming. This article is a plain-language summary of climate change. If you are interested in reading about this topic more in depth, please see our full-length entry, Climate Change.

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/5ff84049-689a-43d8-8625-462b97b5a67f.jpg Climate Change (Plain-Language Summary)
  • Macleans

    Climate Clues from Vancouver Island

    To the uninitiated, it looks no more exciting than a long, thin log of grey plasticene. But to scientists like Jeffrey Fox, a Texas geologist who oversaw its extraction last week from the bottom of a deep bay 16 km north of Victoria, the 9.This article was originally published in Maclean's Magazine on September 2, 1996

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Climate Clues from Vancouver Island
  • Article

    Climate Information

    Climate information is used by a variety of people. Building designers must be certain that their structures will withstand the strongest winds and be habitable during temperature extremes. Airlines, when possible, plan their routes to take advantage of the prevailing winds in the upper atmosphere.

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  • Article

    Climate Severity

     Environment Canada devised the climate severity index to rate a locality's climate according to human comfort and well being. The index has a range from 1 to 100, with a score of 1 representing the least severe climate and 100 the most.

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  • Article

    Climatology

    Climatology is the study of climate over extended periods of time; i.e., of both average and extreme weather conditions. It can also be seen as the study of energy flow through the Earth-atmosphere system. Owing to the Earth's highly interconnected network of subsystems (e.g., solar input, oceans, glaciers, vegetation, atmospheric composition), modern climatology is a multidisciplinary science. The complexity of the Earth's climate is almost certainly due to the co-existence of the three phases of water (vapour, liquid and ice) and the manner in which they interact with radiation. The two main subfields of climatology are physical climatology, which seeks to understand the principles of mass and energy exchanges in the Earth-atmosphere system, and dynamic climatology, which examines factors influencing climate. The study of modern climatology is primarily global in perspective. The main tools used by climatologists are computer models of the atmosphere, ocean and land surface, and data inferred from satellite observations. Other divisions of climatology include descriptive climatology; synoptic climatology, which analyzes weather observations taken simultaneously at different locations; and applied climatology, which makes climate information available to engineers, planners, vacationers, etc (see Climate and Society). The possibility that human activity can deliberately or inadvertently influence climate is also of interest to climatologists.

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    https://d3d0lqu00lnqvz.cloudfront.net/snow/Snow-in-Lunenburg.jpg Climatology
  • Macleans

    Clinton Defends Canadian Federalism

    It doesn't take much to put the spring back into a Quebec separatist's step these days. Their grand project - a march towards independence from Canada, or at least a new partnership of equals with the rest of the country - has bogged down.This article was originally published in Maclean's Magazine on October 18, 1999

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Clinton Defends Canadian Federalism
  • Article

    Clocks and Watches

    The manufacture of clocks and watches in Canada may have begun as early as 1700; however, practising watch and clockmakers through the 18th and much of the 19th centuries did not make the movements.

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Clocks and Watches
  • Macleans

    Cloned Sheep Raises Ethical Issues

    She does not look like a circus freak or a monster or an omen of evil. Her eyes and ears have a pinkish hue - just like they are supposed to.This article was originally published in Maclean's Magazine on March 10, 1997

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Cloned Sheep Raises Ethical Issues
  • Macleans

    Cloning Sheep

    For more than a decade, scientists have been using genetic technology to produce biologically identical copies, or clones, of animals. In theory, cloning can be used to improve sheep and cattle breeds by ensuring that the animals' most desirable genetic characteristics are passed on.This article was originally published in Maclean's Magazine on March 18, 1996

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Cloning Sheep
  • Article

    Closure

    Closure is a procedural provision allowing the Government to curtail debate in the House of Commons and bring on a vote.

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  • Article

    Clothing during the colonial period

    The colonization of eastern Canada began with the French in the 17th century. For some years, these settlers depended for clothing on what they brought with them.

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Clothing during the colonial period
  • Article

    Clothing Industries

    Mass production of clothing in Canada began in the mid-19th century in urban centres, which supplied pools of semi-skilled labour and were the major consumer markets.

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    https://thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Clothing Industries
  • Article

    Cloud

      Cloud, visible suspension in the atmosphere composed of tiny water droplets or ICE crystals from about one to a few hundred micrometres in diameter.

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  • Article

    Clover

    The "true" clovers (genus Trifolium) are herbaceous plants of the pea family Leguminosae or Fabaceae (see legume) and must be distinguished from bur clovers (Medicago) and sweet clovers (Melilotus) of the same family.

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  • Article

    Club-moss

    Club-moss, perennial, evergreen, coarsely mosslike plants belonging to the genera Diphasiastrum, Huperzia, Lycopodiella and Lycopodium of the club-moss family (Lycopodiaceae).

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/a46115b2-9cad-45a1-b41a-cdd3daecdb7b.jpg Club-moss