▁to ▁global ▁war ming . ▁As ▁of ▁early ▁ 2 0 2 0 , ▁more ▁than ▁ 1 0 , 0 0 0 ▁people ▁from ▁New ▁York ▁and ▁London , ▁to ▁R iga ▁and ▁Ab u ▁D hab i , ▁have ▁act ively ▁contributed ▁pieces ▁to ▁Cro ch et ▁Cor al ▁Re ef ▁exhib itions ▁in ▁more ▁than ▁ 4 0 ▁cities ▁and ▁countries . ▁More ▁than ▁two ▁million ▁people ▁have ▁seen ▁these ▁shows . ▁In ▁the ▁for ew ord ▁to ▁the ▁Cro ch et ▁Cor al ▁Re ef ▁book , ▁Don na ▁Har away ▁calls ▁the ▁project ▁" pal p able , ▁polym orph ous , ▁powerful ▁and ▁ter r ifying ▁st itch ery ". ▁W ert heim ▁was ▁invited ▁to ▁speak ▁about ▁the ▁project ▁in ▁a ▁Ted ▁T alk ▁in ▁February ▁ 2 0 0 9 . ▁The ▁talk ▁has ▁been ▁trans cribed ▁into ▁ 2 2 ▁different ▁languages ▁and ▁has ▁sur pass ed ▁ 1 . 3 ▁million ▁views ▁on ▁the ▁Ted ▁website . ▁ ▁Since ▁its ▁beginning ▁in ▁ 2 0 0 5 , C ro ch et ▁Cor al ▁Re ef ▁has ▁expanded ▁into ▁a ▁const ell ation ▁of ▁individual ▁re ef s ▁including ▁a ▁Ble ached ▁Re ef , ▁a ▁To xic ▁Re ef ▁made ▁of ▁video - ta pe ▁and ▁pl astic , ▁a ▁Branch ed ▁An em one ▁Garden , ▁and ▁a ▁giant ▁Cor al ▁Forest ▁– ▁consisting ▁of ▁six ▁large - scale ▁sculpt ures , ▁three ▁cro ch et ed ▁from ▁y arn ▁and