2009+1F91+-+Ch+5+-+Winds+and+the+global+circulation+model+-+DONE[1]

2009+1F91+-+Ch+5+-+Winds+and+the+global+circulation+model+-+DONE[1]

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Unformatted text preview: Global Warming and the Greenhouse Effect (continued) GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Global Warming and the Greenhouse Effect The greenhouse effect is a natural phenomenon that keeps our planet warm enough for life to flourish. However, by the emission of additional greenhouse gases to the atmosphere (such as carbon dioxide), we may be inadvertently increasing that warming and so causing ( or contributing to ) climate changes. GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Global Warming and the Greenhouse Effect GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca One of the most important issues in the study of climate change is the potential for global warming as a consequence of a magnified greenhouse effect. Global Warming and the Greenhouse Effect However, the climate has always constantly changed and it is difficult to differentiate between that natural "noise" and the humaninduced change. GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Global Warming and the Greenhouse Effect Mean annual surface temperature of the Earth, 18801994. The vertical scale shows departures in degrees from a zero line of reference representing the average for the years 19511980. The yellow line shows the mean for each year. The red line shows a running fiveyear average. GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca A reconstruction of the departures of northern hemisphere temperatures from the 19501965 mean, based on analyses of tree rings sampled along the northern tree limit of North America. Global Warming and the Greenhouse Effect GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Global Warming and the Greenhouse Effect GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Global Warming and the Greenhouse Effect GEOG 1F91 Principles of Physical Geography Air Temperature and Cycles npilger@brocku.ca Chapter 5: Winds and the Global Circulation Model GEOG 1F91 Principles of Physical Geography Winds / Global Circulation npilger@brocku.ca Week of Topic Readings Laboratory September 14 Course Introduction Chapter 1 No Labs this week September 21 Introducing Physical Geography Chapter 1 / 2 Lab 1 (odd) September 28 Earth as Rotating Planet Chapter 2 / 3 Lab 1 (even) October 5 Global Energy System Chapter 3 / 4 Lab 2 (odd) October 12 Temperature Cycles Chapter 4 No Labs this week October 19 Winds and Circulation Chapter 5 Lab 2 (even) October 26 Moisture and Precipitation / Quiz Chapter 6 Lab 3 (odd) November 2 Weather Systems Chapter 7 Lab 3 (even) November 9 Scope of Climate Chapter 8 Lab 4 (odd) November 16 LowLatitude Climate Chapter 9 Lab 4 (even) November 23 Mid & HighLatitude Climate Chapter 10 Lab 5 (...
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2009+1F91+-+Ch+5+-+Winds+and+the+global+circulation+model+-+DONE[1]

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