In the Christian religion, The Day of Judgment is the day in the future when all people who are living or dead will be judged by God. It is often known as the Last Judgment, Final Judgment, Judgment Day, Doomsday, or sometimes it is called The Day of the Lord.
Many now think Judgement Day will happen at the hands of humanity. Global warming, or the final World War of nuclear power. Maybe they are one and the same.
