Ironically, China, despite its dirty coal plants, is the world's leader in terms of fashioning policy to combat environmental degradation, thanks to its one-child-only edict.
The intelligence behind this is the following:
-If only one child per female was born as of now, the world's population would drop from its current 6.5 billion to 5.5 billion by 2050, according to a study done for scientific academy Vienna Institute of Demography.
-By 2075, there would be 3.43 billion humans on the planet. This would have immediate positive effects on the world's forests, other species, the oceans, atmospheric quality and living standards.
-Doing nothing, by contrast, will result in an unsustainable population of nine billion by 2050.