地球 ちきゅう温暖 おんだん 防止 ぼうし会議 かいぎであれば
chikyū ondanka bōshikaigideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 地球温暖化防止会議

1. If it were the global warming prevention conference; If the global warming prevention conference were to be held

Ba Conditional