Studio interview: Why "low-carbon" issue increasingly important?

Topic I: Why "low-carbon" issue increasingly important?

Current affairs commentator Gao Zhikai talks about importance of  environmental protection

Q1: Thanks for joining us, Dr. Gao. As we see, the government has done a lot and will work hard on emission reduction and environmental protection. Meanwhile, the word "low-carbon" is frequently mentioned. Why is this issue now becoming more and more important?