In next 20 years there is great advantage in technic and science,but environment pollution is worse,which caused by the industry and traffic.On the other hand,nature resource is almost exhausted in whole world.But new resource like solar energy,nuclear energy couldn't satisfiy the needs.War for resource is inevitable in part of world where still store some of them.New illness is another emergent problem,some of them are so serious that we could find out how to cure it before much death.
The future of human isn't optimistic.