By "people", do you mean "Western mainstream media audiences"? Yeah, that would be extremely difficult. So long as there are no in-their-face consequences (say, the price of gasoline spiking upwards), and no too-obvious "why this is
their fault" narratives - the great majority of Westerners really don't care about horrors happening far far away, to people who look quite different from them.
Yes, you could call the 1993 intervention in Somalia an exception. But note both the context - trends in World Events were looking very utopian back then, vs. now - and just how badly that Western intervention turned out.
With "ordinary person" resources, I'd suggest that you start by trying to document & organize the historical facts about what's happening. That at least improves the records of the tragedy, and of the people and things being lost. While helping you network with other people who really care. And perhaps, just perhaps, that can grow into some real improvement in things. And hopefully the history that you help document can be more than a thin comfort to the survivors and boon to future historians. Try to make it both an easy & authoritative resource for any mainstream Western journalists & activists who get interested, and also useful to any mostly-well-intended Western leaders who want to Do Something. Hopefully without botching it again.