carbon footprint

Switching to solar energy is an effective way for a household to lower its carbon footprint.

(Chinese) 改用太阳能是家庭降低碳足迹的有效方法。

You can use an online calculator to estimate your carbon footprint based on your travel habits.

(Chinese) 你可以使用在线计算器根据你的出行习惯来估算你的碳足迹。