In the first picture, a boy and a girl are planting trees together, contributing their humble share to preserve the eco-system from an early age. And we see a green city without smog in the next picture, where high-rise buildings peek out from thick branches. These scenes are really encouraging.
The invaluable lesson we can draw from the pictures above is that we can improve the air quality we breathe everyday by taking concrete steps to advance the Green City movement. There is no arguing that smog is a problem that we can no longer ignore. But the question is how to fight it and what to do now. Instead of merely tracking smog indicators and complaining about PM2.5 levels on social media, we can make a difference collectively by doing simple things in our daily lives, such as making environmental-friendly choices while shopping and opting for public transportation when travelling. Smog is not built in a day and cannot be attributed to a single factor, so the process to get rid of it would also take time and require persistent efforts from both the public and the government.
It may seem no account whether one person maintain a sustainable lifestyle, but we can gather support from all walks of life and create the synergy, then it will be only a matter of time that smog becomes a rare occurrence and is gradually forgotten as a dated concept.