低碳生活的英文表达是low-carbon lifestyle。这个说法源于对减少温室气体排放的重视，以及对保护环境、提高能源效率和推广可再生能源的关注。

例句：

Switching to a low-carbon lifestyle is one way to reduce our impact on the environment.

I've been trying to live a low-carbon lifestyle by using public transportation and eating less meat.

Many governments around the world are implementing policies to encourage people to adopt low-carbon lifestyles.