Well, few people will believe this but God put Satan in charge of the earth. And Satan controls people's minds. That is why there is so much hatred, and anger, and atheism. God is letting Satan ruin things to prove that without God there is only war and disease and other bad things. But God is sending Jesus back to earth to overturn Satan's destruction and set up God's kingdom. Then the earth will be clean and healthy and people will not have the hatred and anger they have under Satan's rule.
Did God put Satan as the god of this world of badness, or was it -> Adam ?
To me, because Adam chose to listen to Satan and break God's Law, then Adam is responsible in putting Satan in charge.
Adam, in effect, took the Law out of God's hands and placed the Law into human hands.
Thus, Adam set up People Rule as superior to God Rule.
Satan, Not God, brings ' woe ' to Earth - Revelation 12:12,9
Satan can't control anyone unless they let or allow satanic thinking into their minds and hearts.
Satan however does challenge all of us according to Job 2:4-5 to touch our ' flesh ' (loose physical health) and we would Not serve God. Both Job and Jesus under adverse conditions proved Satan a liar and so can we.