╨╧рб▒с>■  %'■   $                                                                                                                                                                                                                                                                                                                                                                                                                                                ье┴@ Ё┐- jbjbЛюЛю сМсМ-      lррррррр  │ъ44444444prrrrrr,Э ╜ VЮр44444ЮДрр444ДДД4:р4р4pДЇрррр4pД╨ДTррT( ∙ ш├nTT││T Д TД├хESYS 10: Introduction to Environmental Systems Winter 2008 Problem Set #4 (Week #6) 1.) Figure 9-2 (in your textbook) presents a systems diagram of the feedbacks involving boreal forest cover, albedo, temperatures, sea ice, and the oceans. We used this diagram to show that it is possible for the northern boreal forest to have a significant impact on the larger scale climate. Using the information you now have about the possible impacts of anthropogenically induced greenhouse climate change, expand on this diagram and discuss the im plications in terms of climate and forest cover. 2.) Consider the following set of statements for a situation in the tropical forest where forest is being cleared for crops: Forest clearance requires access to the forest (roads), An increasing poplulation requires access to services and commodities (a town or city) Settlements require roads Construction and forest clearance are easier (may increase) if roads are present The presence of roads and settlements attracts more people in the region Forest clearings rapidly lose productivity, requiring more clearing Clearing results in loss of biodiversity Take these statements as a minimum (you might think of some other conditions or relationships that could also be included. Construct a systems diagram showing how the statements all interact. Describe what the diagram shows. Are any feedback loops present? If so, are they positive or negative? Is this a useful way of looking at some of the forces that promote deforestation? Is anything missing that should be taken into account? <U- ¤°OJQJ5Б0<UVMN╦╠ [ u ╞  S | } - ··°ЎЎЎЎЎЎЎЎЎЎЎЎЎЎ$a$0<UVMN╦╠ [ u ╞  S | } - №·░╨/ ░р=!░"░#Ра$Ра%░ i4@ё 4NormalCJOJPJQJmH >@> Heading 1$$@&a$ 5БOJQJ<A@Є б<Default Paragraph Font-       аzЩ-- - - ├╔&/|L/  Christopher Charles\Macintosh HD:Users:chrischarles:Documents:Microsoft User Data:AutoRecovery save of Document2Christopher CharlesCC MINIME:problem set 4.docprVRock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:problem set 4.docpr^Rock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:2008ESYS10ProblemSet4.docpr^Rock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:2008ESYS10ProblemSet4.docpr^Rock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:2008ESYS10ProblemSet4.docpr^Rock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:2008ESYS10ProblemSet4.docpr^Rock 'N Roll Computer:Users:patrickrafter:Charles Lab Website:ESYS10:2008ESYS10ProblemSet4.doc0</)С├Д)С├Д @А°m╞щ-P @GРTimes New Roman5РАSymbol3Р Arial3РTimes 1ИЁ╨hО┤┬жц┼┬!Ёе└┤┤А0i@Ё  1Christopher Charlespr■  рЕЯЄ∙OhлС+'│┘0XИРЬи─╨р ь°   ,8@HP'1ssChristopher CharleshriNormalpprm6mMicrosoft Word 10.0@ П@$Т└┴u╚@<КXБw╚■  ╒═╒Ь.УЧ+,∙о0ш hp|ДМФ Ьдм┤ ╝ ╩'SIO$ 1 Title ■    ■   ■    !"#■   ¤   &■   ■   ■                                                                                                                                                                                                                                                                                                                                                               Root Entry         └FАb^>w╚(А1Table         WordDocument        SummaryInformation(    DocumentSummaryInformation8            CompObj            X                        ■                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ■      └FMicrosoft Word Document■   NB6WWord.Document.8