やっぱりハーバードの学生は賢いな(^^)

You bought an electric car. Why did your carbon footprint grow?

https://news.harvard.edu/gazette/story/2023/08/when-buying-an-ev-increases-your-carbon-footprint/

電気自動車を購入。なぜ二酸化炭素排出量が増えたのですか?