These things are the works of humans. The problem in this world us that many people don't take responsibility for the actions. They give credit to those who are not responsible, whether deeds are good or bad.
When bad things happen, the blame is usually put on satan, other people who they hate, or the government. And when good things do happen, the credit usually goes to god or the people/organizations they so happen to agree with at the time being. The credit does not go to those individuals who made it possible