The earth won’t be destroyed by countries firing nuclear bombs at each other. Nor will it be destroyed by the pollution of the ozone to the point that all life suffocates. The earth will be destroyed by God who is the Creator (Genesis 1:1). That will occur on the day of Judgment when God will destroy this earth with fire (2 Peter 3:9-13; 1 John 2:17; Mark 13:31).
The Judgment Day is unknown to men, but it will be the day all men stand before God and answer for the deeds of their life (Matthew 25:31-46; Acts 17:30-31; 2 Corinthians 5:10; Acts 1:11; Revelation 1:7; John 12:48; Ecclesiastes 12:14).
The reason man cannot destroy the earth is because God said he would be the one who does and the Lord doesn’t lie (Hebrews 6:18). Another reason man cannot destroy the world is because God has structured the earth so that it cannot be undone by man (Jeremiah 32:27; Luke 1:37; Hebrews 1:10-12; Psalm 104:5; Eccl. 1:4).
Hope to hear from you or see you at the services.