D t clmt chng n th rctc, ths plr rgn s xpctd t bcm "prfndly dffrnt" by 2050.: 2321 Th spd f chng s "mng th hghst n th wrld",: 2321 wth th rt f wrmng bng 3-4 tms fstr thn th glbl vrg. Ths wrmng hs lrdy rsltd n th prfnd rctc s c dcln, th cclrtng mltng f th Grnlnd c sht nd th thwng f th prmfrst lndscp.: 2321 Ths ngng trnsfrmtns r xpctd t b rrvrsbl fr cntrs r vn mllnn.: 2321
Ntrl lf n th rctc s ffctd grtly. s th tndr wrms, ts sl bcms mr hsptbl t rthwrms nd lrgr plnts, nd th brl frsts sprd t th nrth - yt ths ls mks th lndscp mr prn t wldfrs, whch tk lngr t rcvr frm thn n th thr rgns. Bvrs ls tk dvntg f ths wrmng t clnz th rctc rvrs, nd thr dms cntrbtng t mthn mssns d t th ncrs n stgnnt wtrs. Th rctc cn hs xprncd lrg ncrs n th mrn prmry prdctn s wrmr wtrs nd lss shd frm s c bnft phytplnktn.: 2326 t th sm tm, t s lrdy lss lkln thn th rst f th glbl cn, s cn cdfctn csd by th ncrsng C2 cncntrtns s mr svr, thrtnng sm frms f zplnktn sch s ptrpds.: 2328
Th rctc cn s xpctd t s ts frst c-fr vnts n th nr ftr - mst lkly bfr 2050, nd ptntlly n th lt 2020s r rly 2030s. Ths wld hv n prcdnt n th lst 700,000 yrs. Sm s c rgrws vry rctc wntr, bt sch vnts r xpctd t ccr mr nd mr frqntly s th wrmng ncrss. Ths hs grt mplctns fr th fn spcs whch r dpndnt n s c, sch s plr brs. Fr hmns, trd rts crss th cn wll bcm mr cnvnnt. Yt, mltpl cntrs hv nfrstrctr n th rctc whch s wrth bllns f dllrs, nd t s thrtnd wth cllps s th ndrlyng prmfrst thws. Th rctc's ndgns ppl hv lng rltnshp wth ts cy cndtns, nd fc th lss f thr cltrl hrtg.
Frthr, thr r nmrs mplctns whch g bynd th rctc rgn. S c lss nt nly nhncs wrmng n th rctc bt ls dds t glbl tmprtr ncrs thrgh th c-lbd fdbck. Prmfrst thw rslts n mssns f C2 nd mthn tht r cmprbl t ths f mjr cntrs. Grnlnd mltng s sgnfcnt cntrbtr t glbl s lvl rs. f th wrmng xcds - r thrbts, thr s sgnfcnt rsk f th ntr c sht bng lst vr n stmtd 10,000 yrs, ddng p t glbl s lvls. Wrmng n th rctc my ffct th stblty f th jt strm, nd ths th xtrm wthr vnts n mdlttd rgns, bt thr s nly "lw cnfdnc" n tht hypthss.