| Chem Trail Tracking USA: Yahoo group for members to report chemical trail activity in your area on a real-time basis. To share information on aircraft involved and substance being sprayed. |
| Chem Trails: Bobby Hurst provides pictures of chem trails. |
| Emgergency Planning for Chemical Spills: Tutorial on the Community Right-To-Know Act (EPCRA), emergency response planning information, and facility and firefighter chemical spill emergency instructions. |
| Mothers for Clean Air: Non-profit organization concerned with air pollution in the Houston-Galveston Texas area and its effects on children's health. Provides newsletter, events and air quality information. |
| The Air That We Breathe Group: A campaigning group opposing proposals by Lafarge Cement in Westbury, UK, to burn toxic solvents, tyres and other hazardous wastes in their cement kilns |
| The I Want Clean Air Site: Free donation site to save trees by retiring polluting sulphur-dioxide emissions. Provides information and resources. |
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