It sounds like they've thought of that:
The "Weather Modification Activities" bill sets out that "the injection, release, or dispersion, by any means, of a chemical, a chemical compound, a substance, or an apparatus into the atmosphere within the borders of this state for the express purpose of affecting the temperature, the weather, or the intensity of sunlight is prohibited."
So it allows releasing pollution that causes climate change since it is a side effect of other things (transport, power generation, etc.), but forbids intentionally trying to mitigate climate change by releasing anything into the air. Sounds about right for Florida politics.
That said, there is a real uncertainty about the side effects of may experimental geoengineering techniques, so some regulation is probably in order. Preferable not from Republicans for ignorant or bad faith reasons though.