Do you think global warming is caused by:
| Acid rain | 4% | 9 votes |
| Aerosol spray cans | 0% | 1 vote |
| Carbon dioxide in the atmosphere | 80% | 159 votes |
| Nuclear power plants | 3% | 6 votes |
| Space program | 3% | 6 votes |
| Toxic waste | 1% | 3 votes |
| Volcanic eruptions | 7% | 14 votes |
| 198 total votes | ||
