there was money to be made by reducing acid rain, human creativity came into play. The results were spectacular.

　　 Stages of Environment 　　Present 　　Future 　　 　　We are faced with the greenhouse effect which causes global warming. And if all the people in the world don't 2. ________ in the fight against it, the problem can't be solved. 　　If environmental trends continue in a positive way, there will be no 5. ________. 　　The possible effects of global warming 　　Possibilities 　　The global temperature might 6. ________ by 5 degrees or more. 　　 　　 　　Sea levels would be raised. 　　 　　 　　Weather might turn for the worse. 　　 　　Attitude towards possible effects 　　However, we can't try our

　　7. ________ when it comes to agriculture we rely on to live, and some relative

　　8. ________ must be made to regulate greenhouse gases.