Nowadays, the life of many people in the world is(affect) by globle warming. For example, greenhouse gas has a bad effectboth people and environment. The earth's surface temperature(go) up by about 1 degrees centigrade in the past100 years. As a matter of fact, we may feel that we can hardly put up with the extremely hot summer and we can't get accustomed to warm winter. The rise of the earth's surface temperature has made much (different) to human health, the existence of creatures the balance of ecosystems. There is no doubt that it is human activities that resultthe bad environment. As a (consequent), conditions permitting, all countries in the world should try their best (improve) our environment. Even if our effect is limited, it will(eventual) make a great difference if we keep on(work) together to deal with global warming. Without all people's joint efforts, what would our future be like?