Seven years ago, Zhang Jiawei was just another electrical engineering student at Nanjing Normal University until a talent scout spotted his towering 6-foot-3 frame and camera-ready face.

Today, that same young man, now known by his stage name Zhang Linghe, commands nearly 19 million followers on the Chinese social media platform Sina Weibo and 5 million on Instagram, where each of his posts easily garners a million likes.

The would-be electrical engineer now lives under spotlights, walks red carpets, and spends his days on drama sets.

Recently, however, he appeared in the documentary The Answer Is Earth, produced by Warner Bros. Discovery and the international environmental organization WildAid.

The film explores how China's green shift is quietly reshaping people's daily lives against the backdrop of the country's latest nationally determined contributions, announced on Sept 24, 2025.

The targets to be met by 2035 include reducing economy-wide net greenhouse gas emissions by 7-10 percent below peak levels, raising the share of nonfossil energy to over 30 percent, and expanding wind and solar power capacity to more than six times that of 2020, aiming for 3,600 gigawatts.

In the documentary, Zhang puts on a helmet and arc-flash protective clothing to work alongside real electrical engineers on an offshore booster station, finally getting the chance to experience the career path he could have taken.

"Today, some of the most important stories in the world are about climate change, energy, sustainability, and our changing relationship with nature," says Vikram Channa, vice-president of Warner Bros. Discovery.