1. There's no haps.

2. The title is per-haps an allusion to AIDS.

3. Synonyms for Betides include befalls, chances, happens, occurs, transpires, ensues, supervenes, bechances, haps and takes place

4. Synonyms for Bechances include betides, befalls, chances, happens, occurs, transpires, ensues, supervenes, haps and takes place

5. Clean Air Agenda -- Other Areas of Work on Air: Acid Rain, HAPs, and Stratospheric Ozone Expected Results:

6. Additionally, other variants could be proposed, by implementing some technology enablers previously described within the Satellite Backhauled HAPS architecture