Ecological Crisis

He Chen is a professor in the Earth Science Department of Tsinghua University at a young age. His parents are famous professors at Beijing University of Aeronautics and Astronautics. When he was 8 years old, his parents disappeared unexpectedly. When he was 15 years old, please read the novel for details. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.