According to the report in Advertising Age, although Green Cross and Earth Day often consult and exchange information, the heads of the two organizations are unwilling to talk about their own assessment methods.
根據《廣告年代》的報導指出，雖然綠色十字和地球日雙方經常交換資訊，但兩組織負責人都不願多談各自的評估方式。