| Bird that may nest on volcanic ash |
| Smokestack emission |
| Alpha particle's emission |
| Powdery volcanic coating |
| Additives to improve the smell of auto emissions? |
| U.S. emissions controller |
| Bagpipe emission |
| Stuff that's expelled during a volcanic eruption |
| Low-emission transport? |
| Adjective for volcanic fallout |
| Emissions from a garden sprinkler? |
| Light amplification by stimulated emission of radiation |
| Nocturnal emission? |
| ___ Bike (NYC inititiative to promote a healthy lifestyle and reduce carbon emissions) |
| Act volcanic |
| Emissions watchdog gp. |
| Remission of big toe inflammation? |
| Volcanic discharge |
| Indonesian volcanic island |
| Volcanic outflow |
| Air song about volcanic flow? |
| Org. that controls emissions |
| Emissions watchdog, for short |
| Volcanic particles |
| Red-hot volcanic flow |
| Volcanic outbreak |
| Volcanic outflows |
| Org. that tracks mercury emissions |
| Air purifier emissions |
| Emission of gas from a crater |