Jan12%20Lecture

Jan12%20Lecture - Dr. Jane L. Teranes SIO 25 Jan. 14, 2008...

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Dr. Jane L. Teranes SIO 25 Jan. 14, 2008
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Understand the meaning of climate and  climate change. Understand basic trends in recent climate  change including temperature,  precipitation, melting ice and snow, and  sea level trends. Understand greenhouse gas emissions  are a major cause of recent climate  change. Identify important greenhouse gases and 
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CLIMATE The“average weather”, i.e.  temperature, precipitation,  wind, etc., for a particular  region and time period  (usually 30 years; WMO).  WEATHER Short term state of the  atmosphere.
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CLIMATE CHANGE Any significant change in  measures of climate (such  as temperature,  precipitation, or wind)  lasting for an extended  period (decades or longer).  Preferred over 'global  warming' because it helps  convey that there are  [other] changes in addition  to rising temperatures  (National Academy of  Sciences) GLOBAL WARMING Average increase in the  temperature of the  atmosphere near the  Earth's surface and in the  troposphere In common usage, refers  to anthropogenically  induced warming.
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Natural factors changes in the sun's intensity  slow changes in the Earth's orbit around the  sun; Natural processes within the climate  system changes in ocean circulation Human activities  Burning fossil fuels  Changing the land surface  deforestation, reforestation, urbanization, 
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The week we will describe: Recent Climate Change:  How has the climate  changed in the last 100-150  years? What has caused the  changes? Future Climate Change
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This note was uploaded on 08/07/2009 for the course SIO 25 taught by Professor Teranes during the Spring '08 term at UCSD.

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Jan12%20Lecture - Dr. Jane L. Teranes SIO 25 Jan. 14, 2008...

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