Neil: This is Real English from BBC Learning English. I'm Neil.
Neil: This is the programme in which we look at words and phrases that you may not find in your dictionary.
Neil: Today we're looking at an expression which has become very popular over the last year.
Lily: What's that?
Neil: Carbon footprint.
Lily: Carbon footprint. What does it mean?
Neil: Well, let's start with the second word, footprint.
Neil: You know what happens when you walk on wet or muddy ground?
Lily: Oh yes. 从湿路或泥路上走过时会留下足迹 ? footprint.
Neil: That's right. Well your carbon footprint is the impact you make on the planet from your use of energy.
Lily: Carbon 碳. 碳足迹就是指一个人的能源意识和行为对自然界产生的影响。
A: I'm going on a weekend break to Barcelona tomorrow. I managed to get a really cheap flight.
B: Didn't you fly to Paris last month?
A: Yeah, that was a bargain too.
B: Don't you ever think about the environment? Your carbon footprint must be terrible!
Neil: He uses planes frequently, so he has a large carbon footprint. He uses a lot of energy which puts carbon into the environment.
Lily: 这位讲话的男子经常乘坐飞机旅行，那么他在这个世界上就留下了一个很大碳足迹。carbon footprint，因为汽油燃烧排放废气，污染环境。
Neil: So, lots of people want to reduce their carbon footprint.
Lily: What are you doing to reduce your carbon footprint, Neil?
Neil: Well, I only use my car for essential journeys and I've decided not to take short flights ? I'll use the train instead.
Neil: Well, that's all we have time for today.
Lily: You've been listening to Real English from BBC Learning English.
Neil: Join us again soon for more up-to-the-minute Real English. Bye.
Lily: See you next time.