-9The thlrd lrorking group lyes concerned rrlth the lapact of Ehe Gteenhouse Effect on eoergy slrategles. They reco@ended that -Ean can afford a 5-10 yr. tLoe !'lndow to establlsh the val.ldlty and algnlficance of rhe Greenhouse Effect. They sald that lt is preaature to tlllt the use of fos811 fuele at plesent but that thelr u6e should not be en- . ihls group went on to rec@end nore research and greater on the developDent of enelgy aoulces lrh1ch vould not resul! ln C02 release. couraged effort The DOE bas lnltlated a EaJo! research plogt:lD on the CreeoEffect unde! lhe leadershlp of Davld Slade. Detalled recomendatlons for this effort have been prepared by an Advlsory Corollttee. The6e reco@endatlons nould have the DOE reseelch progran concentrate prlnclpa11y upor obtalalng better lnfotuallon. legErdlng the carbon eycle nhile research on cllllatic effects, lncludlng clitate roodeling, rould be left up NOAA. Slx prograns for research on the calbou cycle are being house recomended f or lmedLate fundlng 1n Vugraph 15. prlorlty . These are presented ln order of Thls l@edlete prograe nould cost $1.56 I6i 1n the flrst year to about $10 MM per year. lhe prograo to recelve highest priorlty, le obtalnlng 4 better estlBate of fossl1 fuel C02 output. fhls nould lnvolve a worldwlde study of how fosel1 fuel coabustlon Blght be expected to increaae and what would I1alt this Lncrease ln both the under-developed aad developed countrles. The second ploject lelates to the use of carbon i.sotopes to obtala a better estfuate of the lrlput of carbon dloxlde fron the blosphere. It ls hoped that CL3 /cI2 ratlos as well as cL4 /cLz ratios ;atr be used for thls purpose. attd lrould soon grolr thlrd project 16 to obtah a direct essesa&ent of the blosphere lnput by observlng the grolrth or depletlon of vegetated areae around the world fron the Landstat satellltes. ltigh resolutlon radar and aer1al photography w111 probably be requlred in s@e lnstances to ldentlfy vegetetlon types. The global vegetatlon oap provlded by these Dethod6 would be u6ed to ldeotlfy sample areas for 1) further analysls uslng photographs of hlgher resolutlon and 2) ground velldatlon of vegetatlon aad eoll type to deflne the relatlonehlp betweea lnage cheracterlstlcs and deslred grouud lufonnatlon. TIJo hundled to a thousaud such areas would be ldentlfled and would be resurveyed at 2 to 5 year lntervals 1n a proglan whlch vould be expected to be able to detect e 2Z chenge 1n the vegecatlon. Thls 1€ an expeoelve prog!:ro and would requlle about 93 !1M per year lthen 1t is runnlng 1u ful1 fotce. Ttle fourth project ls to expand and lmprove the carbon dloxlde aonltorlng Decvork. Thls would lnvolve addlug 10 to 15 addltlonel noaltorlag statlons at suitably leloote areas and expandlng the lnstrulentatlon at all statlons so that Lt could detemlne carbon tsotope The ratlos .