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1、Meetingtheenergyandclimatechallenge:ATaleofTwoCountries(1)Thereisgrowingcompetitionandanxietyoveraccesstoenergyresources.(2)Ourlong-termeconomicprosperityistiedtothesustainableuseofenergy.(3)Therearerisksofadverseclimatechangeforbothcountries.EnergyChallengeMillionbarrels
2、perday19601970198019902000202125151050ConsumptionProductionUSbecameanetoilimporterinthe1940s10196519701975198019851990199520002005202119508765432Chinabecameanetoilimporterinthe1990sBothcountriesarenowimportingroughlyhalfoftheiroil204TemperatureRecord1850–2006IPCC4thclimat
3、eassessment(2007)ThePolarIceCap1979–2005averageismeltingmuchfasterthanpredictedIPCCmodelpredictionsSource:Stroeveetal.2007andupdatedbyDirkNotzHamburgPast2000years:1870–1890:1990–2021:0.0-.02mm/year0.6mm/year3.0mm/year(includingrecentsatellitedata)GlobalSeaLevel:2007IPCCTe
4、chnicalSummaryglaciersinnorthwestChinahaveshrunkby21%,andarerecedingatarateof10-15metersperyear.China’sglaciersarerecedingrapidlyInthepast50yearstheBy2050China’swesternglaciersareprojectedtodecreaseby27%.MeltwaterfromglacierssuppliesthemajorityoffreshwaterinAsiaGangotriGl
5、acier,HimalayasnearChinaChina’sNationalAssessmentReportonClimateChange(II):Climatechangeimpactsandadaptation.20071849193519712000CumulativeGlacierIceMeltIn45years,wehavelostover9,000cubickmofice.2007IPCCTechnicalSummaryAtmosphericmodel(red)withnaturalvariationsandhumangre
6、enhousegasandobservations(black)Atmosphericmodel(blue)withonlynaturalvariationsandobservations(black)Thechangeiscausedbyemissionofgreenhousegases1750,thebeginningoftheindustrialrevolutionIceCoreDataofCO2,CH4,N2OandTemperature(δD)over600,000years.550ppm20,000years12B.A.U.g
7、oesofftheslideCO2EmissionsfromEnergyConsumption(MillionMetricTonsofCarbonDioxide)1325,00020,00015,00010,00030,000200520001995199019851980U.S.andChinaCO2Emissions:42%ofWorldTotal35,00042%theworld5,0000UnitedStatesChinaRestof14Comparison of U.S. and China Energy‐Related Emi
8、ssions –Three Perspectivesmt CO2emissions calculated using 1996 revision of IPCC default carbon
