The first assignment of God to man was to subdue, cultivate and make the earth fruitful (Gen. 1:10, 12, 18, 21, 25). Until today, that command is mandatory.
This planet was perfect back then, but incomplete, because the earth still requires active administration. Man, as the image-bearer of God, is to exercise dominion on earth in terms of God’s law (or ideas).
When man departs from the principles of the Programmer, (known as sin), man suffers negative sanctions and malfunctions. Earth was the first home of man, and will also be the final dwelling place of redeemed men (Revelation 21).