Someone asked me this question that why is there so much evil in the world in spite of God's omnibenevolence and this is my answer:
For you to have asked this question that means you believe in God which is such a great thing. There are many things you should know about God and one of them is that He's given man freewill to do whatever he wants. He's aware of what's going on in the world but he most of the time chooses not to interfere unless when called upon through prayers.
I think it's important you know that there are three important personalities that determine things on earth; God, Angels (you should know that the devil is included here) and Man. Having a sound understanding of these three interesting personalities will go a long way in answering your question.
God knows all things, he's aware of everything, in fact, nothing catches him unawares. So there's lot of suffering in the world but man is responsible for it. Look at our environment and how we've taken care of it, the evil and bad things we've done on it, is God to blame? Did God come down and make all those bombs or has anyone caught God destroying things and the environment? NO, an emphatic at that. Man is responsible for all those bad things.
We need to start doing some good deeds, we need to take care of our environment more. We tend to stop blaming God for all these evil and start being responsible on our own. God is omnibenevolent, man can be. It all starts with each and every one of us.