They are a **communist totalitarian country** with **state controlled media & markets**
That doesn't preclude being a modern industrial country. It might make them the last holdout of the second world but they're definitely not part of the third.
1.a. Human Pollution: China's disasterous 1 child policy and culture of favoring male children has resulted in a whole generation of Chinese society that is 60-40 Male-Female...it's a social crisis they talk about all the time over there
To my knowledge they're currently considering getting rid of the policy and replacing it with a more sendible approach at population control. China is well aware that the one child policy is unsustainable.
1.b. Environmental Pollution: Have you seen the fucking pictures of the smog? Dumping of industrial waste turning rivers red? Dumping of Human corpses into main rivers? Its a fucking nightmare...
It is but it's a side effect of China aggressively expanding their production capacity. Unfortunately, the only thing that counts to the bean-counters (and thus the world at large) is that China is really good at producing things. They can dump toxic chemicals into their rivers all they want, if it means that a gadget become ten cents cheaper that's well worth it to certain people who happen to run the economy.
Fact is, China is an economic powerhouse.