N.T. Wright (Tom Wright) is a current British New Testament scholar who has written extensively at a high level concerning the future of God's creation. In Surprised By Hope: Rethinking Heaven, the Resurrection, and the Mission of the Church (a book that would bless you to read!), Wright says this on page 221 regarding Justice: 

"What would you say to someone who said, rightly, that God would make them completely holy in the resurrection and that they would never reach this state of holiness until then--and who then went on to say, wrongly, that therefore there was no point in even trying to live a holy life until that time? You would press for some form of inaugurated eschatology. You would insist that the new life of the Spirit, in obedience to the lordship of Jesus Christ, should produce radical transformation of behaviour in the present life, anticipating the life to come even though we know we shall never be complete and whole until then. That is, actually, the lesson of Romans 6. Well, apply the same to Romans 8! How do you answer someone who says, rightly, that the world will not be completely just and right until the new creation and who deduces, wrongly, that there is no point trying to bring justice to the world (or for that matter ecological health, another topic for which there is no space here) until that time? Answer, from everything I have said so far: insist on inaugurated eschatology, on a radical transformation of the way we behave as a world wide community, anticipating the eventual time when God will be all in all even though we all agree things won't be complete until then.There is the challenge. The resurrection of Jesus points us to it and gives us the energy for it. Let us overcome our surprise that such a hope should be set before us and go to the task with prayer and wisdom."