Thousands of years ago, curiosity pushed humans to explore new lands and make new settlements there. Tribes gradually moved over this planet settling whenever there were enough natural resources to live on. Over the time, people started to discover new lands for the sake of rare materials that can be traded. After the industrial revolution, we learned to produce things instead of taking them from nature.
Human activity is notorious for its negative impact on the environment. Deforestation and global warming accelerated the extinction of species. Now we have to take urgent actions and save those most endangered ones to prevent our own damage at least partially. Human exploration made it more pleasant for us to live, but the long-term effects are still to come.
There are some positive effects of human exploration and technological development. Now we can produce renewable energy and substitute natural materials, like fur or leather. We do not have to exploit natural resources to live comfortably anymore, which is a great bonus for ourselves and the environment.