Solved by verified expert:Choose A or B and everyone do C and DA) 1) Find your own choice of website that gives CO2 or H2O footprintinformation for some type(s) of industrial or agricultural goods, give theURL,and 2) summarize the info on it, 3) say what info surprised you and 4)compare the gms/$ or liters/$ multipliers you get from the info (you may haveto compute this from info on the site, including getting a price for theproducts from somewhere) to ones you get from my Reader data tables for theGross Approximation used in making your footprints. 1-2 pagesORB) Summarize Garret Harden?s arguments in his article in our Reader, TheTragedy of the Commons, and support or argue with his conclusions. Compare hismajor points to those of Malthus, also in our Readers. 2 to 4 pagesAND EVERYONEC) On the graphic page is presented information on the history of climate overthe last 400,000 years. This comes from ice cores drilled out of the AntarcticIcecap. 1) Please examine the curves carefully and from the curves for CO2 andMethane write down the maximum concentration values these gases have reached inprevious natural climate cycles (pay attention to the units, which are givenalong the vertical axes; 2) what values have these reached in the very recentpast, and what dates are listed for those? How do they compare to the previouspeaks? 3) Have temperature, carbon dioxide and methane concentrations changedfaster in the rise of temperature or in the fall of it?D) Various alternative explanations to human-caused global warming have beenoffered. Choose two from the list below and explain what evidence allows themto be confirmed or denied, and how the evidence is acquired.a) The Sun varies in brightness and that is going on nowTakehome Pg 2b) The shape and orientation of the Earth?s orbit variesc) Cycles in volcanism are changing the CO2 content of the atmosphered) There is no global warming; the data are faked by scientists anxious formore grant money for their research1-2 pages. Start with this site: http://www.skepticalscience.com/ Cite yourreferences.
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