I will take a crack at it, without scripture. First the problem in the question is the premise that Almighty, all good and evil cannot coexist. As much as we would like to take ownership of this planet, it was never given to us. We were created to work for God. Creation was started in Genesis, it wasn’t finished there. He wanted a lush planet teeming with wildlife. As time continues it spreads. When it has reached fullness He will return to rule it. It’s like a big self sustaining farm until man gets greedy and throws off the natural order and balance. How about a parable. A generous, business owner buys a fleet of vehicles and tools for his crew to help them do his work, then allows them to take them home and use them, but to take care of them. After a year they haven’t done their due diligence by maintaining the vehicles. Some lost their tools, some sold them and some men are doing side jobs on company time. One of them got drunk and crashed his van. Then the crew goes to the owner and complains that they can’t do the jobs efficiently because they don’t have the right equipment. Since he is wealthy and able, he should buy them all new equipment again. The owner responded, “You have abused and neglected what I have already provided. If I replace them, you will do it again. Now, take what is left, fix it, and use it in agony. By the time I am ready to make everything new you will have better appreciation for what was given.”
Now the owner could have fired the lot of workers but he decided to be merciful, let them keep their jobs and suffer the consequences. Our Lord has given us instruction to maintain His property but we have not. We are the hands and feet. If the world is evil it is because we are lazy. We have allowed corruption. We have chosen greed and comfort to lead us. When we say, “Lord why do you allow these children to starve to death?”, He says, “I designed it so populations can’t thrive in impoverished barren lands. Lust for sex has created this. Instead of these babies dying mercifully by going to sleep and waking up in eternity others prolong their suffering by feeding them morsels keeping them trapped here. Then their life of suffering leads to more sin and to momentarily stop their pain they have sex, perpetuating the cycle.” Death is a mercy, an example of God’s love, not the exception of it.