Climate Change Essay

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CAPE PENINSULA UNIVERSITY OF TECHNOLOGY
B.ED 2 ISP: GEOGRAPHY

CLIMATE CHANGE

Name: Dowan Rittles
Student number: 212016792

CONTENTs

  1. What is climate change?
  2. Are human activities causing climate change?
  3. What are the consequences of climate change?
  4. Sources.

  1. WHAT IS CLIMATE CHANGE?
Climate change is a change in the average pattern of weather over an extensive period of time. Climate is a statistical explanation of weather conditions and their differences, together with both averages and extremes. Climate change refers to a change in these conditions that continues for an extended period, normally decades or longer.
Weather variables such as temperature and rainfall change naturally. These changes in weather from day to day, between seasons, and from one year to the next, don’t represent climate changes. The period for valuing climate is usually 30 years or more and this is long enough to sample a full range of weather.
Climate can be defined for a certain place or region, usually on the basis of indigenous rainfall patterns or seasonal temperature. Climate can also be defined for the whole earth. For global climate, a key variable is the average surface temperature. Sustained and accurately global changes in average temperature require some global heating or cooling influence such as variations in heat output by the sun, changes to the earth’s orbit around the sun, changes in cloudiness, changes to the extent of ice on earth’s surface, or changes in greenhouse gas concentrations in the atmosphere.
Identifying climate change that is truly global in extent requires simultaneous clarifications from a network of locations around the world. Such a network of instrumental observations has only been available since the second half of the 19th century. Climate changes that occurred before this time can be identified by reconstructing records from climate-sensitive indicators like ocean sediments, ice-cores, tree rings and coral reefs....

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