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.

All I want to say is that life is very fragile. We should live every moment and cherish what we have been given.

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.

I only started to understand the concept of "environmental protection" 14 years ago. I was an ambassador for a charity event, and the staff told me that the consumption of disposable chopsticks in China, per year, could result in the devastation of unimaginable acres of forest.

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.

I saw a dead elephant in one of Kenya's natural reserves. Around her were footprints of her baby elephant. This was just so sad, as three days before, perhaps the mother was still taking the baby around to play and to drink water. In her mind, she probably was thinking they had a life of decades to be together. However, the poaching happened so fast and everything collapsed. Without the protection of the mother, the baby elephant is likely to die too. That moment changed me.

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.