Disappearing nature

       The Amazon(亚马孙) rainforest in South America, at seven million km², is the largest rainforest in the world. The forest is important for people all over the world, because it produces a lot of oxygen(氧气), and also helps to cool the weather. But large areas of the rainforest are being cut down for wood — 55% of the forest could be gone by 2030! The World Wildlife Federation (WWF) is helping to stop some areas of the rainforest from being cut down.

       In China, about 3,600 km² of grassland near the Gobi turns into desert every year. There are often storms that blow dust all the way to Beijing. The storms are getting worse each year and have a deep impact on farmers.

       The goal of the Green Wall Project, started in 1978, is to increase forests in northern China from 5% to 15% in order to stop the desert from growing. The project faces many challenges. However, people must never give up on it.