How are the human beings disturbing the balance of nature?

 Human beings have got certain needs and with these he also has certain abilities; Physical as well as Mental. And thus in order to fulfill his needs human beings is continuously using his abilities to modify the nature. But with advancement in technology, this modification of nature has taken the shape of degradation and exploitation of nature.

One of the most alarming facts in this regard is that the development is taking place without the nature and not with the nature.