The document discusses several severe environmental problems in China including land erosion, water pollution, air pollution, and loss of forests. It states that environmental degradation causes up to 750,000 deaths per year in China. The Yellow River is highlighted as having severe soil erosion affecting over 40% of its basin, losing billions of tons of soil. Desertification is also expanding the Gobi Desert significantly each year. The document notes recent citizen efforts to report environmental issues and government groups working to address water quality and other problems.