[argvargc]

And when activists are scientists?

Or what about when activists just pay attention to, read and understand science?

That, in general, seems to be something rather common - emergent science is often what motivates activists, especially regarding safety.

Actually, much science itself could be considered an ongoing process of a kind of "activism".

As a sibling suggested, if something plausible and potentially harmful hasn't been studied enough to rule it out; study it.

[ekianjo]

Nope dont mix Science and activism. Activism already has a set goal in mind. Science is about the method to reach the truth.

[ceejayoz]

So, once you've reached the truth, like "climate change exists and will have various negative impacts", or "cigarettes are killing millions via cancer", what next?

Activism.