To me, my nephew is the angel of my world. It is my absolute happiest moment whenever he smiles at me.

I love raising awareness and encouraging people to take action for World Environment Day, because it demonstrates how individual voices can become a global chorus for change.

Perseverance is my biggest lesson. When I started to get involved in environmental protection some years ago, my people did not take it seriously and they never considered it important. But today, people look at what I do and they truly recognize those efforts, and eventually they join you as "environmental activists" too!

In China, I helped introduce UNEP's campaign to reduce food waste on World Environment Day. The government took notice of food waste issues and now, when you over-order in a restaurant, you are encouraged to downsize. This is where people can really impact policy and vice versa!

As the Ambassador for WWF Earth Hour, I still vividly remember that there were only 80 buildings in China that participated the Earth Hour in its first year. Six years later, there were 170 cities and thousands of buildings that participated. We are still growing strong. I am encouraged by the accomplishments we have made together and they make me proud and more determined than ever.

Air pollution is my biggest concern right now. Maybe because I live in Beijing, and in this city we have such severe challenges due to bad air quality. It has affected our daily lives and health. I do not go outdoors because of it. I desperately hope that we can improve the current situation.

Environment protection weighs the same in my life as my professional acting career.