朗读文本：

Have you heard of the Three-North Shelter Forest Program? It is a large-scale forest planting project in China. It was started in 1978 to protect the soil, water, and ecosystem of the northern part of China, prevent sandstorms, and promote sustainable development.

The program covers an area of about 4.35 million square kilometers, which includes 13 provinces. The vegetation coverage in the region had increased from 5% in the 1970s to over 13% in 2020. This has significantly reduced the occurrence of sandstorms and improved the ecological environment of the region.

The program has also brought social and economic benefits by providing job opportunities and promoting local industries such as ecotourism and environmental protection. Moreover, it has helped ease the effects of climate change.

Overall, the Three-North Shelter Forest Program is a significant step towards addressing the environmental problems and promoting sustainable development in China.