Well, in the modern world we are living in, everything is changing so rapidly. The world in whole is changing and so is the environment of our earth, where pollution is ubiquitous.

Humans have been polluting the environment since its existence, in one way or another, for our convenience like burning petrol for traveling in vehicles and emitting air pollution from industries to make products more quickly.

President Xi took the initiative to hold a horticultural expo and tell the world China is ready to contribute to better ecological development, through which the entire world and population will benefit.

The best part of his speech was when he urged we maintain the overall balance of Earth's ecology so the starry sky, lush mountains and floral fragrance will be retained for future generations, who will enjoy material prosperity at the same time.

Lucid waters and lush mountains are invaluable assets. Improving the ecological environment is increasing productivity.

We should embrace simple, moderate, green and low-carbon ways of life, and reject extravagance and waste of resources.

It is also worth mentioning he vowed only with concerted efforts can we effectively deal with global environmental issues such as climate change, marine pollution and biological protection.