The Hong Kong person simply takes without any thought as to what effect he is having on nature. For example , tropical forests are known to be essential to the balance of nature yet we are destroying them at an incredible rate. They are being cleared not to benefit the natives of that country, but to satisfy the needs of richer countries. Therefore, a rich person living thousands of miles away may cause more tropical forest destruction than a poor person living in the forest itself. In short then, it is everybody's duty to safeguard the future of mankind - not only through population control, but by being more aware of the effect his actions have on nature.
Nature is both fragile and powerful.
We know our time on earth is finite - sooner or later we all die.