Opening the Earth Summit

In June 6, the Earth Summit started in Germany. The most important theme in this meeting is Global Warming issue. And then, yesterday(opening day) some European countries including Germany and U.S conflicted on this topic. Some European countries want to decrease discharge of greenhouse effect gases, but U.S opposed it. I think we cannot solve this big problem as long as people in the U.S think about it seriously and we cooperate each other to protect our planet. Becouse in the U.S, large quantity of fuels which exhaust greeanhouse effect gases are used, and this problem is our human's responsibility, not only one country's but all countries' in the world.