The Last Green Spot

Violet lives in the future. It the year 4010 where conditions are horrible. The air is polluted, the earth is running out of food, garbage is everywhere, the earth is a mess. 75 percent of the earth's population was sent into space, where the less fortunate were left to survive on the earth .
Hundreds of years ago to give some of the earth a chance to replenish its self the government decided to create a wall straight down the middle of the earth. The population was forced to live on the destroyed side. No one is to ever enter the other side of the world. Even if they wanted to, the chances of the earth being a toxic garbage wasteland was great. With a large force field surrounding, it makes it invisible from space.
When a unknown dangerous species comes without warning Violet finds her self at what she thinks could be the other side of the world.

P.S. If u like sci-fy an d even if u don't at all I think you would still like this book.