I'm late coming in to this conversation, so I'm taking this back to the first post...
You're looking at the cup half empty. I can't explain why there is disease and hardships in the world. Look at the incredibly awesome things in life, and the universe. the human body alone, is proof of god. Don't confuse God with religion. Religion is bullshit, god is not. Religion exploits people, like a bad cult. ( I was raised catholic, but rejected their bullshit as cult brainwashing, once I learned to think for myself.)
This planet and solar system works in harmony to support all our intelligent lives. The earth, moon, and sun work in perfect harmony to provide a habitable place for us to live. It may not be perfect, but it's damn good. You certainly don't have anything to complain about there.
Mankind created most of the problems you list, and religion's poison is mostly to blame. The rest of the problems are from man's ignorance of the forces of nature. Religion has also hampered this also, by punishing people who advance science. This happened over and over throughout history. People had to hide their thoughts from religious leaders, to avoid being tortured to death. Where would our science be today, without all that oppression?
Until religions learn to respect people that disagree with their philosophy (i.e. become tolerant).... there will be war.