Under the world’s watching, Rio Olympic Games finally came to its opening ceremony. Before, a lot of problems had been exposed and many people wondered if Rio could finish the task and present the world a wonderful opening ceremony. The answer was definitely positive. Though the budget was very limited, the government showed the world a green Olympic Games. It is the trees that make our home safe and healthy, while today a lot of people have forgot it and they pollute and destroy the environment. How can we survive in the future. The opening ceremony gave the answer that was to plant trees and protect our environment. Rio Olympic Games showed a great theme and it is creative. The government do not let people down, instead they surprise the world and remind people of the importance of green.