Hybrid rice changed all the world, i have three important reasons.
Hybrid rice uses less farmland, because it can grow in the same place many times. if we use hybrid rice, we don't need to kill many trees, because we do not have to look for new land. we need a lot of farmland to plant rice, but we also need many trees in the world. we do not need to use pollutants for hybrid rice, because it is stronger than first rice. The hybrid rice is better than first rice. If we don't have hybrid rice, maybe many people will die, because they won't have enough rice to eat, hybrid rice has really changed the world.
At the present time, Yuan Longping the "Father of Hybrid Rice", may be the most famous in research on hybrid rice. He developed a hybrid rice which produces 30% more than ordinary ones, which has been widely used in the rice fields. The hybrid rice by Yuan and his co-researchers has made the earth produce extra rice equivalent to food for 80 million or more people. He also changed the world.