A Daniel found an article about China's efforts to fight against desertification. Read the article and answer the questions below.

According to the United Nations, in the last 40 years, desertification has been a problem across almost 30% of the earth's land. China has some of the largest deserts in the world and is working hard to change this situation.

In 1997, China joined the UNCCD, an international agreement to fight desertification.

Since then, China has reduced its desert area by thousands of square kilometres each year. A perfect example of this is the Mu Us Desert in North-west China. Many trees were planted there. Now about 80% of the desert is green.

China has made a great start in dealing with the problem of desertification. However, all the countries in the world need to work together to protect our planet.