Rfrncs t clmt chng n pplr cltr hv xstd snc th lt 20th cntry nd ncrsd n th 21st cntry. Clmt chng, ts mpcts, nd rltd hmn-nvrnmnt ntrctns hv bn ftrd n nnfctn bks nd dcmntrs, bt ls ltrtr, flm, msc, tlvsn shws nd vd gms.
Scnc hstrn Nm rsks ntd n 2005 " hg dscnnct btwn wht prfssnl scntsts hv stdd nd lrnd n th lst 30 yrs, nd wht s t thr n th pplr cltr." n cdmc stdy n 2000 cntrstd th rltvly rpd ccptnc f zn dpltn s rflctd n pplr cltr wth th mch slwr ccptnc f th scntfc cnsnss n clmt chng. Cltrl rspnss hv bn pstd s n mprtnt prt f cmmnctng clmt chng, bt cmmnttrs hv ntd cvrng th tpc hs psd chllngs d t ts bstrct ntr. Th prmnnc f clmt chng n pplr cltr ncrsd drng th 2010s, nflncd by th clmt mvmnt, shfts n pblc pnn nd chngs n md cvrg.