For most of her young life, 9-year-old Gao Ximan dreamed of becoming a policewoman. But after attending an eight-week online workshop about climate change this summer, she decided being a conservationist was a more important ambition.

"Siberian tigers and snow leopards are so cute, but they are dying out,” said Gao, a fourth-grade student at one of the top public schools in Beijing. She stopped using the air conditioner in her bedroom and insisted her family use public transport instead of their car for weekend outings.

Gao’s interest in the environment is something the Chinese government is trying to cultivate in young students as it pursues wide-ranging reforms to eliminate its net emissions of carbon dioxide by 2060. But the nation’s state-led approach to climate change is less tolerant of public debate over how it's going to get there. In other words, the authorities want children like Gao to support its green campaigns, but would prefer their activism stop at lowering their own carbon footprints.