酸化 さんか炭素 たんそ削減 さくげん義務 ぎむじゃなかったです
nisankatansosakugengimujanakattadesu

Noun
Desu Copula

The polite, past negative form of 二酸化炭素削減義務

1. Wasn't obligated to reduce carbon dioxide.; Wasn't required to cut carbon emissions.

Past/Perfective
Negative
Polite
Casual Register