Poor air quality, which can be influenced by a variety of fumes, chemicals and allergens, is arguably the leading cause of triggers for most asthmatics in urban areas. ↗
I've just taught thousands of people over the radio in the USA how to mend broken watches and broken house appliances. I am a catalyst or trigger to access these powers. ↗
That statement was not addressed to the authors of political statements. I said that I deplore attempts to misinform the public and to /trigger/ political intervention. And there were such attempts. ↗