There could be different answers towards this question depending on how you view the current situation. This is my opinion towards the answer.
Yes, the world currently is over populated as the Earth cannot produce enough resources to sustain human activity in the future hundred years. According to researches, approximately 3.1 Earths will be needed to provide sufficient resources for the most developed city.
Currently, there are 7.5 billion people living on Earth and some places are already facing problems of the lack of natural resources like water and food, and have to rely on import to sustain civilians lives. This is often the result of the exhaustion of resources such as overcultivation to satisfy the need of such large population. We can therefore see that the world is indeed overpopulated.
Hope it helps!
